Home / 287,020.47-396,082.13-166,166.85

Finding the Fourth Proportional to 287,020.47, 396,082.13 and 166,166.85

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Solution

The fourth proportional to 287,020.47, 396,082.13 and 166,166.85 is: 229,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,020.47 : 396,082.13 = 166,166.85 : x
  2. Step 2: Convert to fraction form
    287,020.47/396,082.13 = 166,166.85/x
  3. Step 3: Cross multiply
    287,020.47x = 396,082.13 × 166,166.85
  4. Step 4: Simplify right side
    287,020.47x = 65,815,719,052.56
  5. Step 5: Solve for x
    x = 65,815,719,052.56/287,020.47
  6. Step 6: Final answer
    x = 229,306.71

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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.