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Finding the Fourth Proportional to 424,718.86, 636,634.04 and 158,363.50

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Solution

The fourth proportional to 424,718.86, 636,634.04 and 158,363.50 is: 237,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,718.86 : 636,634.04 = 158,363.50 : x
  2. Step 2: Convert to fraction form
    424,718.86/636,634.04 = 158,363.50/x
  3. Step 3: Cross multiply
    424,718.86x = 636,634.04 × 158,363.50
  4. Step 4: Simplify right side
    424,718.86x = 100,819,594,793.54
  5. Step 5: Solve for x
    x = 100,819,594,793.54/424,718.86
  6. Step 6: Final answer
    x = 237,379.60

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1.5x scale

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.