Home / 283,724.25-391,542.15-156,404.40

Finding the Fourth Proportional to 283,724.25, 391,542.15 and 156,404.40

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Solution

The fourth proportional to 283,724.25, 391,542.15 and 156,404.40 is: 215,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,724.25 : 391,542.15 = 156,404.40 : x
  2. Step 2: Convert to fraction form
    283,724.25/391,542.15 = 156,404.40/x
  3. Step 3: Cross multiply
    283,724.25x = 391,542.15 × 156,404.40
  4. Step 4: Simplify right side
    283,724.25x = 61,238,915,045.46
  5. Step 5: Solve for x
    x = 61,238,915,045.46/283,724.25
  6. Step 6: Final answer
    x = 215,839.55

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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.