Home / 278,822.97-417,999.33-120,932.55

Finding the Fourth Proportional to 278,822.97, 417,999.33 and 120,932.55

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Solution

The fourth proportional to 278,822.97, 417,999.33 and 120,932.55 is: 181,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,822.97 : 417,999.33 = 120,932.55 : x
  2. Step 2: Convert to fraction form
    278,822.97/417,999.33 = 120,932.55/x
  3. Step 3: Cross multiply
    278,822.97x = 417,999.33 × 120,932.55
  4. Step 4: Simplify right side
    278,822.97x = 50,549,724,875.19
  5. Step 5: Solve for x
    x = 50,549,724,875.19/278,822.97
  6. Step 6: Final answer
    x = 181,296.85

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1.5x scale

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.