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Finding the Fourth Proportional to 327,818.70, 491,458.05 and 147,915.90

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Solution

The fourth proportional to 327,818.70, 491,458.05 and 147,915.90 is: 221,752.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,818.70 : 491,458.05 = 147,915.90 : x
  2. Step 2: Convert to fraction form
    327,818.70/491,458.05 = 147,915.90/x
  3. Step 3: Cross multiply
    327,818.70x = 491,458.05 × 147,915.90
  4. Step 4: Simplify right side
    327,818.70x = 72,694,459,778.00
  5. Step 5: Solve for x
    x = 72,694,459,778.00/327,818.70
  6. Step 6: Final answer
    x = 221,752.02

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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.