Home / 257,399.28-385,672.20-182,146.56

Finding the Fourth Proportional to 257,399.28, 385,672.20 and 182,146.56

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Solution

The fourth proportional to 257,399.28, 385,672.20 and 182,146.56 is: 272,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,399.28 : 385,672.20 = 182,146.56 : x
  2. Step 2: Convert to fraction form
    257,399.28/385,672.20 = 182,146.56/x
  3. Step 3: Cross multiply
    257,399.28x = 385,672.20 × 182,146.56
  4. Step 4: Simplify right side
    257,399.28x = 70,248,864,517.63
  5. Step 5: Solve for x
    x = 70,248,864,517.63/257,399.28
  6. Step 6: Final answer
    x = 272,917.87

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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.