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Finding the Fourth Proportional to 327,844.80, 491,421.60 and 187,300.80

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Solution

The fourth proportional to 327,844.80, 491,421.60 and 187,300.80 is: 280,753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,844.80 : 491,421.60 = 187,300.80 : x
  2. Step 2: Convert to fraction form
    327,844.80/491,421.60 = 187,300.80/x
  3. Step 3: Cross multiply
    327,844.80x = 491,421.60 × 187,300.80
  4. Step 4: Simplify right side
    327,844.80x = 92,043,658,817.28
  5. Step 5: Solve for x
    x = 92,043,658,817.28/327,844.80
  6. Step 6: Final answer
    x = 280,753.76

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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.