Home / 251,678.20-347,315.97-138,500.95

Finding the Fourth Proportional to 251,678.20, 347,315.97 and 138,500.95

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Solution

The fourth proportional to 251,678.20, 347,315.97 and 138,500.95 is: 191,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,678.20 : 347,315.97 = 138,500.95 : x
  2. Step 2: Convert to fraction form
    251,678.20/347,315.97 = 138,500.95/x
  3. Step 3: Cross multiply
    251,678.20x = 347,315.97 × 138,500.95
  4. Step 4: Simplify right side
    251,678.20x = 48,103,591,446.26
  5. Step 5: Solve for x
    x = 48,103,591,446.26/251,678.20
  6. Step 6: Final answer
    x = 191,131.34

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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.