Home / 305,404.10-421,508.24-169,481.70

Finding the Fourth Proportional to 305,404.10, 421,508.24 and 169,481.70

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Solution

The fourth proportional to 305,404.10, 421,508.24 and 169,481.70 is: 233,912.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,404.10 : 421,508.24 = 169,481.70 : x
  2. Step 2: Convert to fraction form
    305,404.10/421,508.24 = 169,481.70/x
  3. Step 3: Cross multiply
    305,404.10x = 421,508.24 × 169,481.70
  4. Step 4: Simplify right side
    305,404.10x = 71,437,932,231.80
  5. Step 5: Solve for x
    x = 71,437,932,231.80/305,404.10
  6. Step 6: Final answer
    x = 233,912.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.