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Finding the Fourth Proportional to 424,026.29, 636,070.58 and 157,786.78

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Solution

The fourth proportional to 424,026.29, 636,070.58 and 157,786.78 is: 236,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,026.29 : 636,070.58 = 157,786.78 : x
  2. Step 2: Convert to fraction form
    424,026.29/636,070.58 = 157,786.78/x
  3. Step 3: Cross multiply
    424,026.29x = 636,070.58 × 157,786.78
  4. Step 4: Simplify right side
    424,026.29x = 100,363,528,670.93
  5. Step 5: Solve for x
    x = 100,363,528,670.93/424,026.29
  6. Step 6: Final answer
    x = 236,691.76

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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.