Home / 274,418.39-378,679.07-151,902.48

Finding the Fourth Proportional to 274,418.39, 378,679.07 and 151,902.48

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Solution

The fourth proportional to 274,418.39, 378,679.07 and 151,902.48 is: 209,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,418.39 : 378,679.07 = 151,902.48 : x
  2. Step 2: Convert to fraction form
    274,418.39/378,679.07 = 151,902.48/x
  3. Step 3: Cross multiply
    274,418.39x = 378,679.07 × 151,902.48
  4. Step 4: Simplify right side
    274,418.39x = 57,522,291,656.90
  5. Step 5: Solve for x
    x = 57,522,291,656.90/274,418.39
  6. Step 6: Final answer
    x = 209,615.29

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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.