Home / 251,874.12-347,584.68-138,696

Finding the Fourth Proportional to 251,874.12, 347,584.68 and 138,696

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Solution

The fourth proportional to 251,874.12, 347,584.68 and 138,696 is: 191,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,874.12 : 347,584.68 = 138,696 : x
  2. Step 2: Convert to fraction form
    251,874.12/347,584.68 = 138,696/x
  3. Step 3: Cross multiply
    251,874.12x = 347,584.68 × 138,696
  4. Step 4: Simplify right side
    251,874.12x = 48,208,604,777.28
  5. Step 5: Solve for x
    x = 48,208,604,777.28/251,874.12
  6. Step 6: Final answer
    x = 191,399.60

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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.