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Finding the Fourth Proportional to 256,255,488,209.70, 384,383,232,314.55 and 256,255,488,209.70

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Solution

The fourth proportional to 256,255,488,209.70, 384,383,232,314.55 and 256,255,488,209.70 is: 384,383,232,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,255,488,209.70 : 384,383,232,314.55 = 256,255,488,209.70 : x
  2. Step 2: Convert to fraction form
    256,255,488,209.70/384,383,232,314.55 = 256,255,488,209.70/x
  3. Step 3: Cross multiply
    256,255,488,209.70x = 384,383,232,314.55 × 256,255,488,209.70
  4. Step 4: Simplify right side
    256,255,488,209.70x = 98,500,312,856,387,546,775,552
  5. Step 5: Solve for x
    x = 98,500,312,856,387,546,775,552/256,255,488,209.70
  6. Step 6: Final answer
    x = 384,383,232,314.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.