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Finding the Fourth Proportional to 250,597.31, 376,082.78 and 100,838.87

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Solution

The fourth proportional to 250,597.31, 376,082.78 and 100,838.87 is: 151,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,597.31 : 376,082.78 = 100,838.87 : x
  2. Step 2: Convert to fraction form
    250,597.31/376,082.78 = 100,838.87/x
  3. Step 3: Cross multiply
    250,597.31x = 376,082.78 × 100,838.87
  4. Step 4: Simplify right side
    250,597.31x = 37,923,760,177.05
  5. Step 5: Solve for x
    x = 37,923,760,177.05/250,597.31
  6. Step 6: Final answer
    x = 151,333.47

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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.