Home / 206,475.28-309,712.61-56,716.20

Finding the Fourth Proportional to 206,475.28, 309,712.61 and 56,716.20

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Solution

The fourth proportional to 206,475.28, 309,712.61 and 56,716.20 is: 85,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,475.28 : 309,712.61 = 56,716.20 : x
  2. Step 2: Convert to fraction form
    206,475.28/309,712.61 = 56,716.20/x
  3. Step 3: Cross multiply
    206,475.28x = 309,712.61 × 56,716.20
  4. Step 4: Simplify right side
    206,475.28x = 17,565,722,473.07
  5. Step 5: Solve for x
    x = 17,565,722,473.07/206,475.28
  6. Step 6: Final answer
    x = 85,074.22

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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.