Home / 278,974.96-418,361.04-152,708.44

Finding the Fourth Proportional to 278,974.96, 418,361.04 and 152,708.44

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Solution

The fourth proportional to 278,974.96, 418,361.04 and 152,708.44 is: 229,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,974.96 : 418,361.04 = 152,708.44 : x
  2. Step 2: Convert to fraction form
    278,974.96/418,361.04 = 152,708.44/x
  3. Step 3: Cross multiply
    278,974.96x = 418,361.04 × 152,708.44
  4. Step 4: Simplify right side
    278,974.96x = 63,887,261,775.18
  5. Step 5: Solve for x
    x = 63,887,261,775.18/278,974.96
  6. Step 6: Final answer
    x = 229,007.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.