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Finding the Fourth Proportional to 276,045.20, 414,067.80 and 276,045.20

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Solution

The fourth proportional to 276,045.20, 414,067.80 and 276,045.20 is: 414,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,045.20 : 414,067.80 = 276,045.20 : x
  2. Step 2: Convert to fraction form
    276,045.20/414,067.80 = 276,045.20/x
  3. Step 3: Cross multiply
    276,045.20x = 414,067.80 × 276,045.20
  4. Step 4: Simplify right side
    276,045.20x = 114,301,428,664.56
  5. Step 5: Solve for x
    x = 114,301,428,664.56/276,045.20
  6. Step 6: Final answer
    x = 414,067.80

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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.