Home / 278,890.54-418,507.53-110,382.19

Finding the Fourth Proportional to 278,890.54, 418,507.53 and 110,382.19

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Solution

The fourth proportional to 278,890.54, 418,507.53 and 110,382.19 is: 165,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,890.54 : 418,507.53 = 110,382.19 : x
  2. Step 2: Convert to fraction form
    278,890.54/418,507.53 = 110,382.19/x
  3. Step 3: Cross multiply
    278,890.54x = 418,507.53 × 110,382.19
  4. Step 4: Simplify right side
    278,890.54x = 46,195,777,692.89
  5. Step 5: Solve for x
    x = 46,195,777,692.89/278,890.54
  6. Step 6: Final answer
    x = 165,641.25

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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.