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Finding the Fourth Proportional to 150,668.28, 207,928.73 and 90,227.34

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Solution

The fourth proportional to 150,668.28, 207,928.73 and 90,227.34 is: 124,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,668.28 : 207,928.73 = 90,227.34 : x
  2. Step 2: Convert to fraction form
    150,668.28/207,928.73 = 90,227.34/x
  3. Step 3: Cross multiply
    150,668.28x = 207,928.73 × 90,227.34
  4. Step 4: Simplify right side
    150,668.28x = 18,760,855,766.34
  5. Step 5: Solve for x
    x = 18,760,855,766.34/150,668.28
  6. Step 6: Final answer
    x = 124,517.62

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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.