Home / 274,888.80-379,529.28-211,112.64

Finding the Fourth Proportional to 274,888.80, 379,529.28 and 211,112.64

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Solution

The fourth proportional to 274,888.80, 379,529.28 and 211,112.64 is: 291,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,888.80 : 379,529.28 = 211,112.64 : x
  2. Step 2: Convert to fraction form
    274,888.80/379,529.28 = 211,112.64/x
  3. Step 3: Cross multiply
    274,888.80x = 379,529.28 × 211,112.64
  4. Step 4: Simplify right side
    274,888.80x = 80,123,428,258.10
  5. Step 5: Solve for x
    x = 80,123,428,258.10/274,888.80
  6. Step 6: Final answer
    x = 291,475.78

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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.