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Finding the Fourth Proportional to 250,330.68, 375,519.11 and 81,851.87

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Solution

The fourth proportional to 250,330.68, 375,519.11 and 81,851.87 is: 122,785.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,330.68 : 375,519.11 = 81,851.87 : x
  2. Step 2: Convert to fraction form
    250,330.68/375,519.11 = 81,851.87/x
  3. Step 3: Cross multiply
    250,330.68x = 375,519.11 × 81,851.87
  4. Step 4: Simplify right side
    250,330.68x = 30,736,940,964.98
  5. Step 5: Solve for x
    x = 30,736,940,964.98/250,330.68
  6. Step 6: Final answer
    x = 122,785.35

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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.