Home / 278,523.54-417,845.25-88,939.32

Finding the Fourth Proportional to 278,523.54, 417,845.25 and 88,939.32

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Solution

The fourth proportional to 278,523.54, 417,845.25 and 88,939.32 is: 133,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,523.54 : 417,845.25 = 88,939.32 : x
  2. Step 2: Convert to fraction form
    278,523.54/417,845.25 = 88,939.32/x
  3. Step 3: Cross multiply
    278,523.54x = 417,845.25 × 88,939.32
  4. Step 4: Simplify right side
    278,523.54x = 37,162,872,400.23
  5. Step 5: Solve for x
    x = 37,162,872,400.23/278,523.54
  6. Step 6: Final answer
    x = 133,428.12

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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.