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Finding the Fourth Proportional to 327,523.71, 491,285.79 and 90,866.61

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Solution

The fourth proportional to 327,523.71, 491,285.79 and 90,866.61 is: 136,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,523.71 : 491,285.79 = 90,866.61 : x
  2. Step 2: Convert to fraction form
    327,523.71/491,285.79 = 90,866.61/x
  3. Step 3: Cross multiply
    327,523.71x = 491,285.79 × 90,866.61
  4. Step 4: Simplify right side
    327,523.71x = 44,641,474,278.47
  5. Step 5: Solve for x
    x = 44,641,474,278.47/327,523.71
  6. Step 6: Final answer
    x = 136,299.98

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1.5x scale

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.