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Finding the Fourth Proportional to 425,517.68, 587,172.34 and 253,401.41

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Solution

The fourth proportional to 425,517.68, 587,172.34 and 253,401.41 is: 349,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,517.68 : 587,172.34 = 253,401.41 : x
  2. Step 2: Convert to fraction form
    425,517.68/587,172.34 = 253,401.41/x
  3. Step 3: Cross multiply
    425,517.68x = 587,172.34 × 253,401.41
  4. Step 4: Simplify right side
    425,517.68x = 148,790,298,869.00
  5. Step 5: Solve for x
    x = 148,790,298,869.00/425,517.68
  6. Step 6: Final answer
    x = 349,668.90

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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.