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Finding the Fourth Proportional to 250,626.72, 345,880.68 and 137,449.56

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Solution

The fourth proportional to 250,626.72, 345,880.68 and 137,449.56 is: 189,689.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,626.72 : 345,880.68 = 137,449.56 : x
  2. Step 2: Convert to fraction form
    250,626.72/345,880.68 = 137,449.56/x
  3. Step 3: Cross multiply
    250,626.72x = 345,880.68 × 137,449.56
  4. Step 4: Simplify right side
    250,626.72x = 47,541,147,278.50
  5. Step 5: Solve for x
    x = 47,541,147,278.50/250,626.72
  6. Step 6: Final answer
    x = 189,689.06

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1.5x scale

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.