Home / 424,739.28-636,542.82-158,231.46

Finding the Fourth Proportional to 424,739.28, 636,542.82 and 158,231.46

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Solution

The fourth proportional to 424,739.28, 636,542.82 and 158,231.46 is: 237,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,739.28 : 636,542.82 = 158,231.46 : x
  2. Step 2: Convert to fraction form
    424,739.28/636,542.82 = 158,231.46/x
  3. Step 3: Cross multiply
    424,739.28x = 636,542.82 × 158,231.46
  4. Step 4: Simplify right side
    424,739.28x = 100,721,099,761.12
  5. Step 5: Solve for x
    x = 100,721,099,761.12/424,739.28
  6. Step 6: Final answer
    x = 237,136.30

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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.