Home / 278,556.27-418,000.40-101,077.12

Finding the Fourth Proportional to 278,556.27, 418,000.40 and 101,077.12

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Solution

The fourth proportional to 278,556.27, 418,000.40 and 101,077.12 is: 151,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,556.27 : 418,000.40 = 101,077.12 : x
  2. Step 2: Convert to fraction form
    278,556.27/418,000.40 = 101,077.12/x
  3. Step 3: Cross multiply
    278,556.27x = 418,000.40 × 101,077.12
  4. Step 4: Simplify right side
    278,556.27x = 42,250,274,635.75
  5. Step 5: Solve for x
    x = 42,250,274,635.75/278,556.27
  6. Step 6: Final answer
    x = 151,675.91

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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.