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Finding the Fourth Proportional to 250,620.96, 345,856.96 and 137,446.08

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Solution

The fourth proportional to 250,620.96, 345,856.96 and 137,446.08 is: 189,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,620.96 : 345,856.96 = 137,446.08 : x
  2. Step 2: Convert to fraction form
    250,620.96/345,856.96 = 137,446.08/x
  3. Step 3: Cross multiply
    250,620.96x = 345,856.96 × 137,446.08
  4. Step 4: Simplify right side
    250,620.96x = 47,536,683,392.72
  5. Step 5: Solve for x
    x = 47,536,683,392.72/250,620.96
  6. Step 6: Final answer
    x = 189,675.61

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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.