Home / 207,565.20-311,740.92-129,226.32

Finding the Fourth Proportional to 207,565.20, 311,740.92 and 129,226.32

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Solution

The fourth proportional to 207,565.20, 311,740.92 and 129,226.32 is: 194,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,565.20 : 311,740.92 = 129,226.32 : x
  2. Step 2: Convert to fraction form
    207,565.20/311,740.92 = 129,226.32/x
  3. Step 3: Cross multiply
    207,565.20x = 311,740.92 × 129,226.32
  4. Step 4: Simplify right side
    207,565.20x = 40,285,131,885.01
  5. Step 5: Solve for x
    x = 40,285,131,885.01/207,565.20
  6. Step 6: Final answer
    x = 194,084.23

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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.