Home / 275,523.12-412,890.36-156,949.56

Finding the Fourth Proportional to 275,523.12, 412,890.36 and 156,949.56

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Solution

The fourth proportional to 275,523.12, 412,890.36 and 156,949.56 is: 235,199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,523.12 : 412,890.36 = 156,949.56 : x
  2. Step 2: Convert to fraction form
    275,523.12/412,890.36 = 156,949.56/x
  3. Step 3: Cross multiply
    275,523.12x = 412,890.36 × 156,949.56
  4. Step 4: Simplify right side
    275,523.12x = 64,802,960,330.24
  5. Step 5: Solve for x
    x = 64,802,960,330.24/275,523.12
  6. Step 6: Final answer
    x = 235,199.72

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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.