Home / 251,761.55-347,431.00-138,584.30

Finding the Fourth Proportional to 251,761.55, 347,431.00 and 138,584.30

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Solution

The fourth proportional to 251,761.55, 347,431.00 and 138,584.30 is: 191,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,761.55 : 347,431.00 = 138,584.30 : x
  2. Step 2: Convert to fraction form
    251,761.55/347,431.00 = 138,584.30/x
  3. Step 3: Cross multiply
    251,761.55x = 347,431.00 × 138,584.30
  4. Step 4: Simplify right side
    251,761.55x = 48,148,479,849.68
  5. Step 5: Solve for x
    x = 48,148,479,849.68/251,761.55
  6. Step 6: Final answer
    x = 191,246.36

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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.