Home / 278,925.15-418,221.43-110,469.66

Finding the Fourth Proportional to 278,925.15, 418,221.43 and 110,469.66

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Solution

The fourth proportional to 278,925.15, 418,221.43 and 110,469.66 is: 165,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,925.15 : 418,221.43 = 110,469.66 : x
  2. Step 2: Convert to fraction form
    278,925.15/418,221.43 = 110,469.66/x
  3. Step 3: Cross multiply
    278,925.15x = 418,221.43 × 110,469.66
  4. Step 4: Simplify right side
    278,925.15x = 46,200,777,332.31
  5. Step 5: Solve for x
    x = 46,200,777,332.31/278,925.15
  6. Step 6: Final answer
    x = 165,638.62

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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.