Home / 281,972.52-389,086.21-161,121.63

Finding the Fourth Proportional to 281,972.52, 389,086.21 and 161,121.63

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Solution

The fourth proportional to 281,972.52, 389,086.21 and 161,121.63 is: 222,327.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,972.52 : 389,086.21 = 161,121.63 : x
  2. Step 2: Convert to fraction form
    281,972.52/389,086.21 = 161,121.63/x
  3. Step 3: Cross multiply
    281,972.52x = 389,086.21 × 161,121.63
  4. Step 4: Simplify right side
    281,972.52x = 62,690,204,365.72
  5. Step 5: Solve for x
    x = 62,690,204,365.72/281,972.52
  6. Step 6: Final answer
    x = 222,327.35

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1.5x scale

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.