Home / 283,592.11-391,365.35-156,275.90

Finding the Fourth Proportional to 283,592.11, 391,365.35 and 156,275.90

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Solution

The fourth proportional to 283,592.11, 391,365.35 and 156,275.90 is: 215,665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,592.11 : 391,365.35 = 156,275.90 : x
  2. Step 2: Convert to fraction form
    283,592.11/391,365.35 = 156,275.90/x
  3. Step 3: Cross multiply
    283,592.11x = 391,365.35 × 156,275.90
  4. Step 4: Simplify right side
    283,592.11x = 61,160,973,377.42
  5. Step 5: Solve for x
    x = 61,160,973,377.42/283,592.11
  6. Step 6: Final answer
    x = 215,665.29

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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.