Home / 276,933.28-415,403.21-77,241.52

Finding the Fourth Proportional to 276,933.28, 415,403.21 and 77,241.52

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Solution

The fourth proportional to 276,933.28, 415,403.21 and 77,241.52 is: 115,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,933.28 : 415,403.21 = 77,241.52 : x
  2. Step 2: Convert to fraction form
    276,933.28/415,403.21 = 77,241.52/x
  3. Step 3: Cross multiply
    276,933.28x = 415,403.21 × 77,241.52
  4. Step 4: Simplify right side
    276,933.28x = 32,086,375,353.28
  5. Step 5: Solve for x
    x = 32,086,375,353.28/276,933.28
  6. Step 6: Final answer
    x = 115,863.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.