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Finding the Fourth Proportional to 324,852.85, 487,362.31 and 125,119.61

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Solution

The fourth proportional to 324,852.85, 487,362.31 and 125,119.61 is: 187,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,852.85 : 487,362.31 = 125,119.61 : x
  2. Step 2: Convert to fraction form
    324,852.85/487,362.31 = 125,119.61/x
  3. Step 3: Cross multiply
    324,852.85x = 487,362.31 × 125,119.61
  4. Step 4: Simplify right side
    324,852.85x = 60,978,580,789.29
  5. Step 5: Solve for x
    x = 60,978,580,789.29/324,852.85
  6. Step 6: Final answer
    x = 187,711.39

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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.