Home / 251,691.50-347,334.36-138,511.82

Finding the Fourth Proportional to 251,691.50, 347,334.36 and 138,511.82

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Solution

The fourth proportional to 251,691.50, 347,334.36 and 138,511.82 is: 191,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,691.50 : 347,334.36 = 138,511.82 : x
  2. Step 2: Convert to fraction form
    251,691.50/347,334.36 = 138,511.82/x
  3. Step 3: Cross multiply
    251,691.50x = 347,334.36 × 138,511.82
  4. Step 4: Simplify right side
    251,691.50x = 48,109,914,352.14
  5. Step 5: Solve for x
    x = 48,109,914,352.14/251,691.50
  6. Step 6: Final answer
    x = 191,146.36

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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.