Home / 278,268.33-417,381.53-88,721.04

Finding the Fourth Proportional to 278,268.33, 417,381.53 and 88,721.04

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Solution

The fourth proportional to 278,268.33, 417,381.53 and 88,721.04 is: 133,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,268.33 : 417,381.53 = 88,721.04 : x
  2. Step 2: Convert to fraction form
    278,268.33/417,381.53 = 88,721.04/x
  3. Step 3: Cross multiply
    278,268.33x = 417,381.53 × 88,721.04
  4. Step 4: Simplify right side
    278,268.33x = 37,030,522,192.20
  5. Step 5: Solve for x
    x = 37,030,522,192.20/278,268.33
  6. Step 6: Final answer
    x = 133,074.87

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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.