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Finding the Fourth Proportional to 250,330.32, 375,579.30 and 81,858.42

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Solution

The fourth proportional to 250,330.32, 375,579.30 and 81,858.42 is: 122,815.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,330.32 : 375,579.30 = 81,858.42 : x
  2. Step 2: Convert to fraction form
    250,330.32/375,579.30 = 81,858.42/x
  3. Step 3: Cross multiply
    250,330.32x = 375,579.30 × 81,858.42
  4. Step 4: Simplify right side
    250,330.32x = 30,744,328,082.71
  5. Step 5: Solve for x
    x = 30,744,328,082.71/250,330.32
  6. Step 6: Final answer
    x = 122,815.04

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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.