Home / 281,845.20-388,949.56-161,002.48

Finding the Fourth Proportional to 281,845.20, 388,949.56 and 161,002.48

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Solution

The fourth proportional to 281,845.20, 388,949.56 and 161,002.48 is: 222,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,845.20 : 388,949.56 = 161,002.48 : x
  2. Step 2: Convert to fraction form
    281,845.20/388,949.56 = 161,002.48/x
  3. Step 3: Cross multiply
    281,845.20x = 388,949.56 × 161,002.48
  4. Step 4: Simplify right side
    281,845.20x = 62,621,843,754.91
  5. Step 5: Solve for x
    x = 62,621,843,754.91/281,845.20
  6. Step 6: Final answer
    x = 222,185.24

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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.