Home / 274,960.32-379,427.20-161,761.28

Finding the Fourth Proportional to 274,960.32, 379,427.20 and 161,761.28

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Solution

The fourth proportional to 274,960.32, 379,427.20 and 161,761.28 is: 223,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,960.32 : 379,427.20 = 161,761.28 : x
  2. Step 2: Convert to fraction form
    274,960.32/379,427.20 = 161,761.28/x
  3. Step 3: Cross multiply
    274,960.32x = 379,427.20 × 161,761.28
  4. Step 4: Simplify right side
    274,960.32x = 61,376,629,538.82
  5. Step 5: Solve for x
    x = 61,376,629,538.82/274,960.32
  6. Step 6: Final answer
    x = 223,219.95

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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.