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Finding the Fourth Proportional to 424,918.80, 636,697.80 and 224,978.40

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Solution

The fourth proportional to 424,918.80, 636,697.80 and 224,978.40 is: 337,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,918.80 : 636,697.80 = 224,978.40 : x
  2. Step 2: Convert to fraction form
    424,918.80/636,697.80 = 224,978.40/x
  3. Step 3: Cross multiply
    424,918.80x = 636,697.80 × 224,978.40
  4. Step 4: Simplify right side
    424,918.80x = 143,243,252,327.52
  5. Step 5: Solve for x
    x = 143,243,252,327.52/424,918.80
  6. Step 6: Final answer
    x = 337,107.35

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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.