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Finding the Fourth Proportional to 231,857.75, 321,600.67 and 225,712.28

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Solution

The fourth proportional to 231,857.75, 321,600.67 and 225,712.28 is: 313,076.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,857.75 : 321,600.67 = 225,712.28 : x
  2. Step 2: Convert to fraction form
    231,857.75/321,600.67 = 225,712.28/x
  3. Step 3: Cross multiply
    231,857.75x = 321,600.67 × 225,712.28
  4. Step 4: Simplify right side
    231,857.75x = 72,589,220,714.95
  5. Step 5: Solve for x
    x = 72,589,220,714.95/231,857.75
  6. Step 6: Final answer
    x = 313,076.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.