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Finding the Fourth Proportional to 424,177.60, 636,270.80 and 124,663.52

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Solution

The fourth proportional to 424,177.60, 636,270.80 and 124,663.52 is: 186,996.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,177.60 : 636,270.80 = 124,663.52 : x
  2. Step 2: Convert to fraction form
    424,177.60/636,270.80 = 124,663.52/x
  3. Step 3: Cross multiply
    424,177.60x = 636,270.80 × 124,663.52
  4. Step 4: Simplify right side
    424,177.60x = 79,319,757,601.22
  5. Step 5: Solve for x
    x = 79,319,757,601.22/424,177.60
  6. Step 6: Final answer
    x = 186,996.57

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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.