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Finding the Fourth Proportional to 424,255.46, 636,230.09 and 124,655.90

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Solution

The fourth proportional to 424,255.46, 636,230.09 and 124,655.90 is: 186,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,255.46 : 636,230.09 = 124,655.90 : x
  2. Step 2: Convert to fraction form
    424,255.46/636,230.09 = 124,655.90/x
  3. Step 3: Cross multiply
    424,255.46x = 636,230.09 × 124,655.90
  4. Step 4: Simplify right side
    424,255.46x = 79,309,831,606.52
  5. Step 5: Solve for x
    x = 79,309,831,606.52/424,255.46
  6. Step 6: Final answer
    x = 186,938.86

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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.