Home / 283,432.50-391,136.94-156,107.88

Finding the Fourth Proportional to 283,432.50, 391,136.94 and 156,107.88

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Solution

The fourth proportional to 283,432.50, 391,136.94 and 156,107.88 is: 215,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,432.50 : 391,136.94 = 156,107.88 : x
  2. Step 2: Convert to fraction form
    283,432.50/391,136.94 = 156,107.88/x
  3. Step 3: Cross multiply
    283,432.50x = 391,136.94 × 156,107.88
  4. Step 4: Simplify right side
    283,432.50x = 61,059,558,493.09
  5. Step 5: Solve for x
    x = 61,059,558,493.09/283,432.50
  6. Step 6: Final answer
    x = 215,428.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.