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Finding the Fourth Proportional to 324,761.53, 487,187.38 and 100,139.62

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Solution

The fourth proportional to 324,761.53, 487,187.38 and 100,139.62 is: 150,223.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,761.53 : 487,187.38 = 100,139.62 : x
  2. Step 2: Convert to fraction form
    324,761.53/487,187.38 = 100,139.62/x
  3. Step 3: Cross multiply
    324,761.53x = 487,187.38 × 100,139.62
  4. Step 4: Simplify right side
    324,761.53x = 48,786,756,666.06
  5. Step 5: Solve for x
    x = 48,786,756,666.06/324,761.53
  6. Step 6: Final answer
    x = 150,223.33

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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.