Home / 283,542.90-391,306.86-156,218.46

Finding the Fourth Proportional to 283,542.90, 391,306.86 and 156,218.46

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Solution

The fourth proportional to 283,542.90, 391,306.86 and 156,218.46 is: 215,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,542.90 : 391,306.86 = 156,218.46 : x
  2. Step 2: Convert to fraction form
    283,542.90/391,306.86 = 156,218.46/x
  3. Step 3: Cross multiply
    283,542.90x = 391,306.86 × 156,218.46
  4. Step 4: Simplify right side
    283,542.90x = 61,129,355,056.64
  5. Step 5: Solve for x
    x = 61,129,355,056.64/283,542.90
  6. Step 6: Final answer
    x = 215,591.20

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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.