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Finding the Fourth Proportional to 250,612.92, 345,845.88 and 137,438.04

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Solution

The fourth proportional to 250,612.92, 345,845.88 and 137,438.04 is: 189,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,612.92 : 345,845.88 = 137,438.04 : x
  2. Step 2: Convert to fraction form
    250,612.92/345,845.88 = 137,438.04/x
  3. Step 3: Cross multiply
    250,612.92x = 345,845.88 × 137,438.04
  4. Step 4: Simplify right side
    250,612.92x = 47,532,379,889.28
  5. Step 5: Solve for x
    x = 47,532,379,889.28/250,612.92
  6. Step 6: Final answer
    x = 189,664.52

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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.