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Finding the Fourth Proportional to 250,652.88, 345,906.36 and 137,475.36

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Solution

The fourth proportional to 250,652.88, 345,906.36 and 137,475.36 is: 189,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,652.88 : 345,906.36 = 137,475.36 : x
  2. Step 2: Convert to fraction form
    250,652.88/345,906.36 = 137,475.36/x
  3. Step 3: Cross multiply
    250,652.88x = 345,906.36 × 137,475.36
  4. Step 4: Simplify right side
    250,652.88x = 47,553,601,367.29
  5. Step 5: Solve for x
    x = 47,553,601,367.29/250,652.88
  6. Step 6: Final answer
    x = 189,718.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.