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Finding the Fourth Proportional to 207,732.28, 311,640.34 and 65,599.76

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Solution

The fourth proportional to 207,732.28, 311,640.34 and 65,599.76 is: 98,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,732.28 : 311,640.34 = 65,599.76 : x
  2. Step 2: Convert to fraction form
    207,732.28/311,640.34 = 65,599.76/x
  3. Step 3: Cross multiply
    207,732.28x = 311,640.34 × 65,599.76
  4. Step 4: Simplify right side
    207,732.28x = 20,443,531,510.32
  5. Step 5: Solve for x
    x = 20,443,531,510.32/207,732.28
  6. Step 6: Final answer
    x = 98,412.88

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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.