Home / 276,720.80-379,383.86-271,676.25

Finding the Fourth Proportional to 276,720.80, 379,383.86 and 271,676.25

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Solution

The fourth proportional to 276,720.80, 379,383.86 and 271,676.25 is: 372,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,720.80 : 379,383.86 = 271,676.25 : x
  2. Step 2: Convert to fraction form
    276,720.80/379,383.86 = 271,676.25/x
  3. Step 3: Cross multiply
    276,720.80x = 379,383.86 × 271,676.25
  4. Step 4: Simplify right side
    276,720.80x = 103,069,583,036.94
  5. Step 5: Solve for x
    x = 103,069,583,036.94/276,720.80
  6. Step 6: Final answer
    x = 372,467.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.