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Finding the Fourth Proportional to 391,147.56, 586,096.38 and 250,789.80

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Solution

The fourth proportional to 391,147.56, 586,096.38 and 250,789.80 is: 375,784.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,147.56 : 586,096.38 = 250,789.80 : x
  2. Step 2: Convert to fraction form
    391,147.56/586,096.38 = 250,789.80/x
  3. Step 3: Cross multiply
    391,147.56x = 586,096.38 × 250,789.80
  4. Step 4: Simplify right side
    391,147.56x = 146,986,993,920.92
  5. Step 5: Solve for x
    x = 146,986,993,920.92/391,147.56
  6. Step 6: Final answer
    x = 375,784.00

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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.