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Finding the Fourth Proportional to 281,342.97, 388,258.11 and 173,910.24

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Solution

The fourth proportional to 281,342.97, 388,258.11 and 173,910.24 is: 239,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,342.97 : 388,258.11 = 173,910.24 : x
  2. Step 2: Convert to fraction form
    281,342.97/388,258.11 = 173,910.24/x
  3. Step 3: Cross multiply
    281,342.97x = 388,258.11 × 173,910.24
  4. Step 4: Simplify right side
    281,342.97x = 67,522,061,092.05
  5. Step 5: Solve for x
    x = 67,522,061,092.05/281,342.97
  6. Step 6: Final answer
    x = 239,999.11

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1.5x scale

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.