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Finding the Fourth Proportional to 324,228, 486,344.16 and 102,612

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Solution

The fourth proportional to 324,228, 486,344.16 and 102,612 is: 153,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,228 : 486,344.16 = 102,612 : x
  2. Step 2: Convert to fraction form
    324,228/486,344.16 = 102,612/x
  3. Step 3: Cross multiply
    324,228x = 486,344.16 × 102,612
  4. Step 4: Simplify right side
    324,228x = 49,904,746,945.92
  5. Step 5: Solve for x
    x = 49,904,746,945.92/324,228
  6. Step 6: Final answer
    x = 153,918.68

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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.