Home / 352,481.13-486,432.18-209,241.72

Finding the Fourth Proportional to 352,481.13, 486,432.18 and 209,241.72

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Solution

The fourth proportional to 352,481.13, 486,432.18 and 209,241.72 is: 288,758.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,481.13 : 486,432.18 = 209,241.72 : x
  2. Step 2: Convert to fraction form
    352,481.13/486,432.18 = 209,241.72/x
  3. Step 3: Cross multiply
    352,481.13x = 486,432.18 × 209,241.72
  4. Step 4: Simplify right side
    352,481.13x = 101,781,906,006.55
  5. Step 5: Solve for x
    x = 101,781,906,006.55/352,481.13
  6. Step 6: Final answer
    x = 288,758.45

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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.