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Finding the Fourth Proportional to 256,164.20, 383,555.10 and 256,164.20

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Solution

The fourth proportional to 256,164.20, 383,555.10 and 256,164.20 is: 383,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,164.20 : 383,555.10 = 256,164.20 : x
  2. Step 2: Convert to fraction form
    256,164.20/383,555.10 = 256,164.20/x
  3. Step 3: Cross multiply
    256,164.20x = 383,555.10 × 256,164.20
  4. Step 4: Simplify right side
    256,164.20x = 98,253,085,347.42
  5. Step 5: Solve for x
    x = 98,253,085,347.42/256,164.20
  6. Step 6: Final answer
    x = 383,555.10

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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.