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Finding the Fourth Proportional to 324,813.35, 487,304.09 and 100,168.82

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Solution

The fourth proportional to 324,813.35, 487,304.09 and 100,168.82 is: 150,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,813.35 : 487,304.09 = 100,168.82 : x
  2. Step 2: Convert to fraction form
    324,813.35/487,304.09 = 100,168.82/x
  3. Step 3: Cross multiply
    324,813.35x = 487,304.09 × 100,168.82
  4. Step 4: Simplify right side
    324,813.35x = 48,812,674,942.13
  5. Step 5: Solve for x
    x = 48,812,674,942.13/324,813.35
  6. Step 6: Final answer
    x = 150,279.15

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1.5x scale

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.