Home / 281,228.20-388,101.62-160,381.04

Finding the Fourth Proportional to 281,228.20, 388,101.62 and 160,381.04

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Solution

The fourth proportional to 281,228.20, 388,101.62 and 160,381.04 is: 221,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,228.20 : 388,101.62 = 160,381.04 : x
  2. Step 2: Convert to fraction form
    281,228.20/388,101.62 = 160,381.04/x
  3. Step 3: Cross multiply
    281,228.20x = 388,101.62 × 160,381.04
  4. Step 4: Simplify right side
    281,228.20x = 62,244,141,441.28
  5. Step 5: Solve for x
    x = 62,244,141,441.28/281,228.20
  6. Step 6: Final answer
    x = 221,329.66

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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.