Home / 278,026.34-416,789.82-135,791.15

Finding the Fourth Proportional to 278,026.34, 416,789.82 and 135,791.15

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Solution

The fourth proportional to 278,026.34, 416,789.82 and 135,791.15 is: 203,564.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,026.34 : 416,789.82 = 135,791.15 : x
  2. Step 2: Convert to fraction form
    278,026.34/416,789.82 = 135,791.15/x
  3. Step 3: Cross multiply
    278,026.34x = 416,789.82 × 135,791.15
  4. Step 4: Simplify right side
    278,026.34x = 56,596,366,882.14
  5. Step 5: Solve for x
    x = 56,596,366,882.14/278,026.34
  6. Step 6: Final answer
    x = 203,564.77

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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.