Home / 231,869.80-347,718.30-161,540.20

Finding the Fourth Proportional to 231,869.80, 347,718.30 and 161,540.20

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Solution

The fourth proportional to 231,869.80, 347,718.30 and 161,540.20 is: 242,250.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,869.80 : 347,718.30 = 161,540.20 : x
  2. Step 2: Convert to fraction form
    231,869.80/347,718.30 = 161,540.20/x
  3. Step 3: Cross multiply
    231,869.80x = 347,718.30 × 161,540.20
  4. Step 4: Simplify right side
    231,869.80x = 56,170,483,725.66
  5. Step 5: Solve for x
    x = 56,170,483,725.66/231,869.80
  6. Step 6: Final answer
    x = 242,250.11

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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.