Home / 278,963.26-418,421.13-110,437.75

Finding the Fourth Proportional to 278,963.26, 418,421.13 and 110,437.75

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Solution

The fourth proportional to 278,963.26, 418,421.13 and 110,437.75 is: 165,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,963.26 : 418,421.13 = 110,437.75 : x
  2. Step 2: Convert to fraction form
    278,963.26/418,421.13 = 110,437.75/x
  3. Step 3: Cross multiply
    278,963.26x = 418,421.13 × 110,437.75
  4. Step 4: Simplify right side
    278,963.26x = 46,209,488,149.66
  5. Step 5: Solve for x
    x = 46,209,488,149.66/278,963.26
  6. Step 6: Final answer
    x = 165,647.22

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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.