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Finding the Fourth Proportional to 424,073.45, 636,141.06 and 157,833.88

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Solution

The fourth proportional to 424,073.45, 636,141.06 and 157,833.88 is: 236,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,073.45 : 636,141.06 = 157,833.88 : x
  2. Step 2: Convert to fraction form
    424,073.45/636,141.06 = 157,833.88/x
  3. Step 3: Cross multiply
    424,073.45x = 636,141.06 × 157,833.88
  4. Step 4: Simplify right side
    424,073.45x = 100,404,610,136.76
  5. Step 5: Solve for x
    x = 100,404,610,136.76/424,073.45
  6. Step 6: Final answer
    x = 236,762.31

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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.