Home / 283,607.12-391,380.45-156,287.27

Finding the Fourth Proportional to 283,607.12, 391,380.45 and 156,287.27

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Solution

The fourth proportional to 283,607.12, 391,380.45 and 156,287.27 is: 215,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,607.12 : 391,380.45 = 156,287.27 : x
  2. Step 2: Convert to fraction form
    283,607.12/391,380.45 = 156,287.27/x
  3. Step 3: Cross multiply
    283,607.12x = 391,380.45 × 156,287.27
  4. Step 4: Simplify right side
    283,607.12x = 61,167,782,061.87
  5. Step 5: Solve for x
    x = 61,167,782,061.87/283,607.12
  6. Step 6: Final answer
    x = 215,677.88

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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.