Home / 251,910.87-347,621.25-138,733.62

Finding the Fourth Proportional to 251,910.87, 347,621.25 and 138,733.62

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Solution

The fourth proportional to 251,910.87, 347,621.25 and 138,733.62 is: 191,443.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,910.87 : 347,621.25 = 138,733.62 : x
  2. Step 2: Convert to fraction form
    251,910.87/347,621.25 = 138,733.62/x
  3. Step 3: Cross multiply
    251,910.87x = 347,621.25 × 138,733.62
  4. Step 4: Simplify right side
    251,910.87x = 48,226,754,401.43
  5. Step 5: Solve for x
    x = 48,226,754,401.43/251,910.87
  6. Step 6: Final answer
    x = 191,443.72

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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.