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Finding the Fourth Proportional to 424,714.86, 636,628.05 and 158,359.50

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Solution

The fourth proportional to 424,714.86, 636,628.05 and 158,359.50 is: 237,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,714.86 : 636,628.05 = 158,359.50 : x
  2. Step 2: Convert to fraction form
    424,714.86/636,628.05 = 158,359.50/x
  3. Step 3: Cross multiply
    424,714.86x = 636,628.05 × 158,359.50
  4. Step 4: Simplify right side
    424,714.86x = 100,816,099,683.98
  5. Step 5: Solve for x
    x = 100,816,099,683.98/424,714.86
  6. Step 6: Final answer
    x = 237,373.61

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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.