Home / 283,622.64-391,398.39-156,298.20

Finding the Fourth Proportional to 283,622.64, 391,398.39 and 156,298.20

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Solution

The fourth proportional to 283,622.64, 391,398.39 and 156,298.20 is: 215,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,622.64 : 391,398.39 = 156,298.20 : x
  2. Step 2: Convert to fraction form
    283,622.64/391,398.39 = 156,298.20/x
  3. Step 3: Cross multiply
    283,622.64x = 391,398.39 × 156,298.20
  4. Step 4: Simplify right side
    283,622.64x = 61,174,863,839.90
  5. Step 5: Solve for x
    x = 61,174,863,839.90/283,622.64
  6. Step 6: Final answer
    x = 215,691.05

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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.