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Finding the Fourth Proportional to 252,490.92, 379,240.80 and 157,889.40

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Solution

The fourth proportional to 252,490.92, 379,240.80 and 157,889.40 is: 237,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,490.92 : 379,240.80 = 157,889.40 : x
  2. Step 2: Convert to fraction form
    252,490.92/379,240.80 = 157,889.40/x
  3. Step 3: Cross multiply
    252,490.92x = 379,240.80 × 157,889.40
  4. Step 4: Simplify right side
    252,490.92x = 59,878,102,367.52
  5. Step 5: Solve for x
    x = 59,878,102,367.52/252,490.92
  6. Step 6: Final answer
    x = 237,149.53

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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.