Home / 276,823.80-415,214.10-108,311.40

Finding the Fourth Proportional to 276,823.80, 415,214.10 and 108,311.40

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Solution

The fourth proportional to 276,823.80, 415,214.10 and 108,311.40 is: 162,458.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,823.80 : 415,214.10 = 108,311.40 : x
  2. Step 2: Convert to fraction form
    276,823.80/415,214.10 = 108,311.40/x
  3. Step 3: Cross multiply
    276,823.80x = 415,214.10 × 108,311.40
  4. Step 4: Simplify right side
    276,823.80x = 44,972,420,470.74
  5. Step 5: Solve for x
    x = 44,972,420,470.74/276,823.80
  6. Step 6: Final answer
    x = 162,458.65

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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.