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Finding the Fourth Proportional to 250,351.97, 345,483.43 and 137,174.72

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Solution

The fourth proportional to 250,351.97, 345,483.43 and 137,174.72 is: 189,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,351.97 : 345,483.43 = 137,174.72 : x
  2. Step 2: Convert to fraction form
    250,351.97/345,483.43 = 137,174.72/x
  3. Step 3: Cross multiply
    250,351.97x = 345,483.43 × 137,174.72
  4. Step 4: Simplify right side
    250,351.97x = 47,391,590,704.54
  5. Step 5: Solve for x
    x = 47,391,590,704.54/250,351.97
  6. Step 6: Final answer
    x = 189,299.86

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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.