Home / 281,723.42-388,788.92-160,865.75

Finding the Fourth Proportional to 281,723.42, 388,788.92 and 160,865.75

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Solution

The fourth proportional to 281,723.42, 388,788.92 and 160,865.75 is: 222,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,723.42 : 388,788.92 = 160,865.75 : x
  2. Step 2: Convert to fraction form
    281,723.42/388,788.92 = 160,865.75/x
  3. Step 3: Cross multiply
    281,723.42x = 388,788.92 × 160,865.75
  4. Step 4: Simplify right side
    281,723.42x = 62,542,818,459.22
  5. Step 5: Solve for x
    x = 62,542,818,459.22/281,723.42
  6. Step 6: Final answer
    x = 222,000.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.