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Finding the Fourth Proportional to 424,920.30, 636,700.05 and 224,979.90

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Solution

The fourth proportional to 424,920.30, 636,700.05 and 224,979.90 is: 337,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,920.30 : 636,700.05 = 224,979.90 : x
  2. Step 2: Convert to fraction form
    424,920.30/636,700.05 = 224,979.90/x
  3. Step 3: Cross multiply
    424,920.30x = 636,700.05 × 224,979.90
  4. Step 4: Simplify right side
    424,920.30x = 143,244,713,579.00
  5. Step 5: Solve for x
    x = 143,244,713,579.00/424,920.30
  6. Step 6: Final answer
    x = 337,109.60

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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.