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Finding the Fourth Proportional to 324,016.60, 485,960.10 and 155,536.60

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Solution

The fourth proportional to 324,016.60, 485,960.10 and 155,536.60 is: 233,273.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,016.60 : 485,960.10 = 155,536.60 : x
  2. Step 2: Convert to fraction form
    324,016.60/485,960.10 = 155,536.60/x
  3. Step 3: Cross multiply
    324,016.60x = 485,960.10 × 155,536.60
  4. Step 4: Simplify right side
    324,016.60x = 75,584,581,689.66
  5. Step 5: Solve for x
    x = 75,584,581,689.66/324,016.60
  6. Step 6: Final answer
    x = 233,273.79

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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.