Home / 281,807.20-388,921.76-160,966.56

Finding the Fourth Proportional to 281,807.20, 388,921.76 and 160,966.56

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Solution

The fourth proportional to 281,807.20, 388,921.76 and 160,966.56 is: 222,149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,807.20 : 388,921.76 = 160,966.56 : x
  2. Step 2: Convert to fraction form
    281,807.20/388,921.76 = 160,966.56/x
  3. Step 3: Cross multiply
    281,807.20x = 388,921.76 × 160,966.56
  4. Step 4: Simplify right side
    281,807.20x = 62,603,397,816.35
  5. Step 5: Solve for x
    x = 62,603,397,816.35/281,807.20
  6. Step 6: Final answer
    x = 222,149.75

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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.