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Finding the Fourth Proportional to 274,570.82, 378,712.36 and 251,982.77

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Solution

The fourth proportional to 274,570.82, 378,712.36 and 251,982.77 is: 347,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,570.82 : 378,712.36 = 251,982.77 : x
  2. Step 2: Convert to fraction form
    274,570.82/378,712.36 = 251,982.77/x
  3. Step 3: Cross multiply
    274,570.82x = 378,712.36 × 251,982.77
  4. Step 4: Simplify right side
    274,570.82x = 95,428,989,506.04
  5. Step 5: Solve for x
    x = 95,428,989,506.04/274,570.82
  6. Step 6: Final answer
    x = 347,556.92

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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.