Home / 258,249.98-387,397.29-71,261.48

Finding the Fourth Proportional to 258,249.98, 387,397.29 and 71,261.48

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Solution

The fourth proportional to 258,249.98, 387,397.29 and 71,261.48 is: 106,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,249.98 : 387,397.29 = 71,261.48 : x
  2. Step 2: Convert to fraction form
    258,249.98/387,397.29 = 71,261.48/x
  3. Step 3: Cross multiply
    258,249.98x = 387,397.29 × 71,261.48
  4. Step 4: Simplify right side
    258,249.98x = 27,606,504,233.39
  5. Step 5: Solve for x
    x = 27,606,504,233.39/258,249.98
  6. Step 6: Final answer
    x = 106,898.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.