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Finding the Fourth Proportional to 327,892.40, 491,838.60 and 228,165.20

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Solution

The fourth proportional to 327,892.40, 491,838.60 and 228,165.20 is: 342,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,892.40 : 491,838.60 = 228,165.20 : x
  2. Step 2: Convert to fraction form
    327,892.40/491,838.60 = 228,165.20/x
  3. Step 3: Cross multiply
    327,892.40x = 491,838.60 × 228,165.20
  4. Step 4: Simplify right side
    327,892.40x = 112,220,452,536.72
  5. Step 5: Solve for x
    x = 112,220,452,536.72/327,892.40
  6. Step 6: Final answer
    x = 342,247.80

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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.