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Finding the Fourth Proportional to 391,766.02, 586,861.68 and 204,383.86

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Solution

The fourth proportional to 391,766.02, 586,861.68 and 204,383.86 is: 306,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,766.02 : 586,861.68 = 204,383.86 : x
  2. Step 2: Convert to fraction form
    391,766.02/586,861.68 = 204,383.86/x
  3. Step 3: Cross multiply
    391,766.02x = 586,861.68 × 204,383.86
  4. Step 4: Simplify right side
    391,766.02x = 119,945,055,444.49
  5. Step 5: Solve for x
    x = 119,945,055,444.49/391,766.02
  6. Step 6: Final answer
    x = 306,165.03

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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.