Home / 231,946.20-347,919.30-138,634.20

Finding the Fourth Proportional to 231,946.20, 347,919.30 and 138,634.20

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Solution

The fourth proportional to 231,946.20, 347,919.30 and 138,634.20 is: 207,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,946.20 : 347,919.30 = 138,634.20 : x
  2. Step 2: Convert to fraction form
    231,946.20/347,919.30 = 138,634.20/x
  3. Step 3: Cross multiply
    231,946.20x = 347,919.30 × 138,634.20
  4. Step 4: Simplify right side
    231,946.20x = 48,233,513,820.06
  5. Step 5: Solve for x
    x = 48,233,513,820.06/231,946.20
  6. Step 6: Final answer
    x = 207,951.30

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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.