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Finding the Fourth Proportional to 391,500.64, 540,245.26 and 230,324.52

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Solution

The fourth proportional to 391,500.64, 540,245.26 and 230,324.52 is: 317,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,500.64 : 540,245.26 = 230,324.52 : x
  2. Step 2: Convert to fraction form
    391,500.64/540,245.26 = 230,324.52/x
  3. Step 3: Cross multiply
    391,500.64x = 540,245.26 × 230,324.52
  4. Step 4: Simplify right side
    391,500.64x = 124,431,730,191.78
  5. Step 5: Solve for x
    x = 124,431,730,191.78/391,500.64
  6. Step 6: Final answer
    x = 317,832.76

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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.