Home / 228,826.50-343,001.45-76,910.81

Finding the Fourth Proportional to 228,826.50, 343,001.45 and 76,910.81

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Solution

The fourth proportional to 228,826.50, 343,001.45 and 76,910.81 is: 115,286.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,826.50 : 343,001.45 = 76,910.81 : x
  2. Step 2: Convert to fraction form
    228,826.50/343,001.45 = 76,910.81/x
  3. Step 3: Cross multiply
    228,826.50x = 343,001.45 × 76,910.81
  4. Step 4: Simplify right side
    228,826.50x = 26,380,517,251.11
  5. Step 5: Solve for x
    x = 26,380,517,251.11/228,826.50
  6. Step 6: Final answer
    x = 115,286.11

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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.