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Finding the Fourth Proportional to 338,767.60, 488,455.20 and 338,767.60

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Solution

The fourth proportional to 338,767.60, 488,455.20 and 338,767.60 is: 488,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,767.60 : 488,455.20 = 338,767.60 : x
  2. Step 2: Convert to fraction form
    338,767.60/488,455.20 = 338,767.60/x
  3. Step 3: Cross multiply
    338,767.60x = 488,455.20 × 338,767.60
  4. Step 4: Simplify right side
    338,767.60x = 165,472,795,811.52
  5. Step 5: Solve for x
    x = 165,472,795,811.52/338,767.60
  6. Step 6: Final answer
    x = 488,455.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.