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Finding the Fourth Proportional to 207,730.28, 311,637.34 and 65,597.76

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Solution

The fourth proportional to 207,730.28, 311,637.34 and 65,597.76 is: 98,409.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,730.28 : 311,637.34 = 65,597.76 : x
  2. Step 2: Convert to fraction form
    207,730.28/311,637.34 = 65,597.76/x
  3. Step 3: Cross multiply
    207,730.28x = 311,637.34 × 65,597.76
  4. Step 4: Simplify right side
    207,730.28x = 20,442,711,436.36
  5. Step 5: Solve for x
    x = 20,442,711,436.36/207,730.28
  6. Step 6: Final answer
    x = 98,409.88

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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.