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Finding the Fourth Proportional to 324,165.36, 486,393.48 and 205,805.04

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Solution

The fourth proportional to 324,165.36, 486,393.48 and 205,805.04 is: 308,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,165.36 : 486,393.48 = 205,805.04 : x
  2. Step 2: Convert to fraction form
    324,165.36/486,393.48 = 205,805.04/x
  3. Step 3: Cross multiply
    324,165.36x = 486,393.48 × 205,805.04
  4. Step 4: Simplify right side
    324,165.36x = 100,102,229,607.14
  5. Step 5: Solve for x
    x = 100,102,229,607.14/324,165.36
  6. Step 6: Final answer
    x = 308,799.90

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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.