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Finding the Fourth Proportional to 275,519.28, 413,278.92 and 109,307.28

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Solution

The fourth proportional to 275,519.28, 413,278.92 and 109,307.28 is: 163,960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,519.28 : 413,278.92 = 109,307.28 : x
  2. Step 2: Convert to fraction form
    275,519.28/413,278.92 = 109,307.28/x
  3. Step 3: Cross multiply
    275,519.28x = 413,278.92 × 109,307.28
  4. Step 4: Simplify right side
    275,519.28x = 45,174,394,626.54
  5. Step 5: Solve for x
    x = 45,174,394,626.54/275,519.28
  6. Step 6: Final answer
    x = 163,960.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.