Home / 251,690.20-347,332.52-138,512.96

Finding the Fourth Proportional to 251,690.20, 347,332.52 and 138,512.96

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Solution

The fourth proportional to 251,690.20, 347,332.52 and 138,512.96 is: 191,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,690.20 : 347,332.52 = 138,512.96 : x
  2. Step 2: Convert to fraction form
    251,690.20/347,332.52 = 138,512.96/x
  3. Step 3: Cross multiply
    251,690.20x = 347,332.52 × 138,512.96
  4. Step 4: Simplify right side
    251,690.20x = 48,110,055,449.46
  5. Step 5: Solve for x
    x = 48,110,055,449.46/251,690.20
  6. Step 6: Final answer
    x = 191,147.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.