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Finding the Fourth Proportional to 424,099.42, 636,134.55 and 108,559.06

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Solution

The fourth proportional to 424,099.42, 636,134.55 and 108,559.06 is: 162,834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,099.42 : 636,134.55 = 108,559.06 : x
  2. Step 2: Convert to fraction form
    424,099.42/636,134.55 = 108,559.06/x
  3. Step 3: Cross multiply
    424,099.42x = 636,134.55 × 108,559.06
  4. Step 4: Simplify right side
    424,099.42x = 69,058,168,781.52
  5. Step 5: Solve for x
    x = 69,058,168,781.52/424,099.42
  6. Step 6: Final answer
    x = 162,834.86

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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.