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Finding the Fourth Proportional to 250,254.61, 375,399.43 and 100,494.90

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Solution

The fourth proportional to 250,254.61, 375,399.43 and 100,494.90 is: 150,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,254.61 : 375,399.43 = 100,494.90 : x
  2. Step 2: Convert to fraction form
    250,254.61/375,399.43 = 100,494.90/x
  3. Step 3: Cross multiply
    250,254.61x = 375,399.43 × 100,494.90
  4. Step 4: Simplify right side
    250,254.61x = 37,725,728,177.91
  5. Step 5: Solve for x
    x = 37,725,728,177.91/250,254.61
  6. Step 6: Final answer
    x = 150,749.38

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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.