Home / 278,836.42-418,256.04-68,474.44

Finding the Fourth Proportional to 278,836.42, 418,256.04 and 68,474.44

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Solution

The fourth proportional to 278,836.42, 418,256.04 and 68,474.44 is: 102,712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,836.42 : 418,256.04 = 68,474.44 : x
  2. Step 2: Convert to fraction form
    278,836.42/418,256.04 = 68,474.44/x
  3. Step 3: Cross multiply
    278,836.42x = 418,256.04 × 68,474.44
  4. Step 4: Simplify right side
    278,836.42x = 28,639,848,115.62
  5. Step 5: Solve for x
    x = 28,639,848,115.62/278,836.42
  6. Step 6: Final answer
    x = 102,712.01

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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.