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Finding the Fourth Proportional to 250,250.81, 345,354.72 and 137,073.56

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Solution

The fourth proportional to 250,250.81, 345,354.72 and 137,073.56 is: 189,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,250.81 : 345,354.72 = 137,073.56 : x
  2. Step 2: Convert to fraction form
    250,250.81/345,354.72 = 137,073.56/x
  3. Step 3: Cross multiply
    250,250.81x = 345,354.72 × 137,073.56
  4. Step 4: Simplify right side
    250,250.81x = 47,339,000,933.20
  5. Step 5: Solve for x
    x = 47,339,000,933.20/250,250.81
  6. Step 6: Final answer
    x = 189,166.22

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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.