Home / 229,983.50-345,020.40-80,228.68

Finding the Fourth Proportional to 229,983.50, 345,020.40 and 80,228.68

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Solution

The fourth proportional to 229,983.50, 345,020.40 and 80,228.68 is: 120,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,983.50 : 345,020.40 = 80,228.68 : x
  2. Step 2: Convert to fraction form
    229,983.50/345,020.40 = 80,228.68/x
  3. Step 3: Cross multiply
    229,983.50x = 345,020.40 × 80,228.68
  4. Step 4: Simplify right side
    229,983.50x = 27,680,530,402.52
  5. Step 5: Solve for x
    x = 27,680,530,402.52/229,983.50
  6. Step 6: Final answer
    x = 120,358.77

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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.