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Finding the Fourth Proportional to 392,581.53, 541,762.62 and 220,499.76

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Solution

The fourth proportional to 392,581.53, 541,762.62 and 220,499.76 is: 304,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,581.53 : 541,762.62 = 220,499.76 : x
  2. Step 2: Convert to fraction form
    392,581.53/541,762.62 = 220,499.76/x
  3. Step 3: Cross multiply
    392,581.53x = 541,762.62 × 220,499.76
  4. Step 4: Simplify right side
    392,581.53x = 119,458,527,686.97
  5. Step 5: Solve for x
    x = 119,458,527,686.97/392,581.53
  6. Step 6: Final answer
    x = 304,289.73

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1.5x scale

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.