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Finding the Fourth Proportional to 324,498.76, 486,761.50 and 111,413

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Solution

The fourth proportional to 324,498.76, 486,761.50 and 111,413 is: 167,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,498.76 : 486,761.50 = 111,413 : x
  2. Step 2: Convert to fraction form
    324,498.76/486,761.50 = 111,413/x
  3. Step 3: Cross multiply
    324,498.76x = 486,761.50 × 111,413
  4. Step 4: Simplify right side
    324,498.76x = 54,231,558,999.50
  5. Step 5: Solve for x
    x = 54,231,558,999.50/324,498.76
  6. Step 6: Final answer
    x = 167,124.09

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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.