Home / 231,470.15-347,232.96-81,679.50

Finding the Fourth Proportional to 231,470.15, 347,232.96 and 81,679.50

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Solution

The fourth proportional to 231,470.15, 347,232.96 and 81,679.50 is: 122,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,470.15 : 347,232.96 = 81,679.50 : x
  2. Step 2: Convert to fraction form
    231,470.15/347,232.96 = 81,679.50/x
  3. Step 3: Cross multiply
    231,470.15x = 347,232.96 × 81,679.50
  4. Step 4: Simplify right side
    231,470.15x = 28,361,814,556.32
  5. Step 5: Solve for x
    x = 28,361,814,556.32/231,470.15
  6. Step 6: Final answer
    x = 122,529.04

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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.