Home / 274,701.21-378,932.90-159,966.33

Finding the Fourth Proportional to 274,701.21, 378,932.90 and 159,966.33

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Solution

The fourth proportional to 274,701.21, 378,932.90 and 159,966.33 is: 220,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,701.21 : 378,932.90 = 159,966.33 : x
  2. Step 2: Convert to fraction form
    274,701.21/378,932.90 = 159,966.33/x
  3. Step 3: Cross multiply
    274,701.21x = 378,932.90 × 159,966.33
  4. Step 4: Simplify right side
    274,701.21x = 60,616,504,529.43
  5. Step 5: Solve for x
    x = 60,616,504,529.43/274,701.21
  6. Step 6: Final answer
    x = 220,663.41

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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.