Home / 281,227.20-388,100.24-160,380.04

Finding the Fourth Proportional to 281,227.20, 388,100.24 and 160,380.04

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Solution

The fourth proportional to 281,227.20, 388,100.24 and 160,380.04 is: 221,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,227.20 : 388,100.24 = 160,380.04 : x
  2. Step 2: Convert to fraction form
    281,227.20/388,100.24 = 160,380.04/x
  3. Step 3: Cross multiply
    281,227.20x = 388,100.24 × 160,380.04
  4. Step 4: Simplify right side
    281,227.20x = 62,243,532,015.21
  5. Step 5: Solve for x
    x = 62,243,532,015.21/281,227.20
  6. Step 6: Final answer
    x = 221,328.28

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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.