Home / 221,912.82-306,241.73-126,418.10

Finding the Fourth Proportional to 221,912.82, 306,241.73 and 126,418.10

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Solution

The fourth proportional to 221,912.82, 306,241.73 and 126,418.10 is: 174,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,912.82 : 306,241.73 = 126,418.10 : x
  2. Step 2: Convert to fraction form
    221,912.82/306,241.73 = 126,418.10/x
  3. Step 3: Cross multiply
    221,912.82x = 306,241.73 × 126,418.10
  4. Step 4: Simplify right side
    221,912.82x = 38,714,497,647.31
  5. Step 5: Solve for x
    x = 38,714,497,647.31/221,912.82
  6. Step 6: Final answer
    x = 174,458.14

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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.