Home / 391,678.24-587,279.04-166,912.96

Finding the Fourth Proportional to 391,678.24, 587,279.04 and 166,912.96

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Solution

The fourth proportional to 391,678.24, 587,279.04 and 166,912.96 is: 250,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,678.24 : 587,279.04 = 166,912.96 : x
  2. Step 2: Convert to fraction form
    391,678.24/587,279.04 = 166,912.96/x
  3. Step 3: Cross multiply
    391,678.24x = 587,279.04 × 166,912.96
  4. Step 4: Simplify right side
    391,678.24x = 98,024,482,912.36
  5. Step 5: Solve for x
    x = 98,024,482,912.36/391,678.24
  6. Step 6: Final answer
    x = 250,267.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.