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Finding the Fourth Proportional to 440,098.28, 660,425.32 and 187,378.88

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Solution

The fourth proportional to 440,098.28, 660,425.32 and 187,378.88 is: 281,186.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,098.28 : 660,425.32 = 187,378.88 : x
  2. Step 2: Convert to fraction form
    440,098.28/660,425.32 = 187,378.88/x
  3. Step 3: Cross multiply
    440,098.28x = 660,425.32 × 187,378.88
  4. Step 4: Simplify right side
    440,098.28x = 123,749,756,785.24
  5. Step 5: Solve for x
    x = 123,749,756,785.24/440,098.28
  6. Step 6: Final answer
    x = 281,186.64

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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.