Home / 231,822.40-347,647.20-82,004.80

Finding the Fourth Proportional to 231,822.40, 347,647.20 and 82,004.80

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Solution

The fourth proportional to 231,822.40, 347,647.20 and 82,004.80 is: 122,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,822.40 : 347,647.20 = 82,004.80 : x
  2. Step 2: Convert to fraction form
    231,822.40/347,647.20 = 82,004.80/x
  3. Step 3: Cross multiply
    231,822.40x = 347,647.20 × 82,004.80
  4. Step 4: Simplify right side
    231,822.40x = 28,508,739,106.56
  5. Step 5: Solve for x
    x = 28,508,739,106.56/231,822.40
  6. Step 6: Final answer
    x = 122,976.64

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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.