Home / 391,589.12-587,459.28-166,945.76

Finding the Fourth Proportional to 391,589.12, 587,459.28 and 166,945.76

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Solution

The fourth proportional to 391,589.12, 587,459.28 and 166,945.76 is: 250,450.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,589.12 : 587,459.28 = 166,945.76 : x
  2. Step 2: Convert to fraction form
    391,589.12/587,459.28 = 166,945.76/x
  3. Step 3: Cross multiply
    391,589.12x = 587,459.28 × 166,945.76
  4. Step 4: Simplify right side
    391,589.12x = 98,073,835,968.65
  5. Step 5: Solve for x
    x = 98,073,835,968.65/391,589.12
  6. Step 6: Final answer
    x = 250,450.87

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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.