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Finding the Fourth Proportional to 281,661.88, 388,744.42 and 179,719

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Solution

The fourth proportional to 281,661.88, 388,744.42 and 179,719 is: 248,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,661.88 : 388,744.42 = 179,719 : x
  2. Step 2: Convert to fraction form
    281,661.88/388,744.42 = 179,719/x
  3. Step 3: Cross multiply
    281,661.88x = 388,744.42 × 179,719
  4. Step 4: Simplify right side
    281,661.88x = 69,864,758,417.98
  5. Step 5: Solve for x
    x = 69,864,758,417.98/281,661.88
  6. Step 6: Final answer
    x = 248,044.78

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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.