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Finding the Fourth Proportional to 424,240.70, 636,194.29 and 154,304.76

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Solution

The fourth proportional to 424,240.70, 636,194.29 and 154,304.76 is: 231,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,240.70 : 636,194.29 = 154,304.76 : x
  2. Step 2: Convert to fraction form
    424,240.70/636,194.29 = 154,304.76/x
  3. Step 3: Cross multiply
    424,240.70x = 636,194.29 × 154,304.76
  4. Step 4: Simplify right side
    424,240.70x = 98,167,803,279.33
  5. Step 5: Solve for x
    x = 98,167,803,279.33/424,240.70
  6. Step 6: Final answer
    x = 231,396.48

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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.