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Finding the Fourth Proportional to 324,251.90, 486,205.05 and 137,051.90

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Solution

The fourth proportional to 324,251.90, 486,205.05 and 137,051.90 is: 205,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,251.90 : 486,205.05 = 137,051.90 : x
  2. Step 2: Convert to fraction form
    324,251.90/486,205.05 = 137,051.90/x
  3. Step 3: Cross multiply
    324,251.90x = 486,205.05 × 137,051.90
  4. Step 4: Simplify right side
    324,251.90x = 66,635,325,892.10
  5. Step 5: Solve for x
    x = 66,635,325,892.10/324,251.90
  6. Step 6: Final answer
    x = 205,504.81

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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.