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Finding the Fourth Proportional to 324,062.20, 485,862.90 and 124,305.40

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Solution

The fourth proportional to 324,062.20, 485,862.90 and 124,305.40 is: 186,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,062.20 : 485,862.90 = 124,305.40 : x
  2. Step 2: Convert to fraction form
    324,062.20/485,862.90 = 124,305.40/x
  3. Step 3: Cross multiply
    324,062.20x = 485,862.90 × 124,305.40
  4. Step 4: Simplify right side
    324,062.20x = 60,395,382,129.66
  5. Step 5: Solve for x
    x = 60,395,382,129.66/324,062.20
  6. Step 6: Final answer
    x = 186,369.72

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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.