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Finding the Fourth Proportional to 250,401.96, 345,563.55 and 137,224.71

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Solution

The fourth proportional to 250,401.96, 345,563.55 and 137,224.71 is: 189,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,401.96 : 345,563.55 = 137,224.71 : x
  2. Step 2: Convert to fraction form
    250,401.96/345,563.55 = 137,224.71/x
  3. Step 3: Cross multiply
    250,401.96x = 345,563.55 × 137,224.71
  4. Step 4: Simplify right side
    250,401.96x = 47,419,857,935.32
  5. Step 5: Solve for x
    x = 47,419,857,935.32/250,401.96
  6. Step 6: Final answer
    x = 189,374.95

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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.