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Finding the Fourth Proportional to 307,549.28, 424,041 and 252,910.56

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Solution

The fourth proportional to 307,549.28, 424,041 and 252,910.56 is: 348,706.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,549.28 : 424,041 = 252,910.56 : x
  2. Step 2: Convert to fraction form
    307,549.28/424,041 = 252,910.56/x
  3. Step 3: Cross multiply
    307,549.28x = 424,041 × 252,910.56
  4. Step 4: Simplify right side
    307,549.28x = 107,244,446,772.96
  5. Step 5: Solve for x
    x = 107,244,446,772.96/307,549.28
  6. Step 6: Final answer
    x = 348,706.54

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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.