Home / 281,503.12-388,474.28-154,179.04

Finding the Fourth Proportional to 281,503.12, 388,474.28 and 154,179.04

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Solution

The fourth proportional to 281,503.12, 388,474.28 and 154,179.04 is: 212,767.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,503.12 : 388,474.28 = 154,179.04 : x
  2. Step 2: Convert to fraction form
    281,503.12/388,474.28 = 154,179.04/x
  3. Step 3: Cross multiply
    281,503.12x = 388,474.28 × 154,179.04
  4. Step 4: Simplify right side
    281,503.12x = 59,894,591,555.09
  5. Step 5: Solve for x
    x = 59,894,591,555.09/281,503.12
  6. Step 6: Final answer
    x = 212,767.06

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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.