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Finding the Fourth Proportional to 276,462.24, 381,701.52 and 212,687.52

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Solution

The fourth proportional to 276,462.24, 381,701.52 and 212,687.52 is: 293,650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,462.24 : 381,701.52 = 212,687.52 : x
  2. Step 2: Convert to fraction form
    276,462.24/381,701.52 = 212,687.52/x
  3. Step 3: Cross multiply
    276,462.24x = 381,701.52 × 212,687.52
  4. Step 4: Simplify right side
    276,462.24x = 81,183,149,669.03
  5. Step 5: Solve for x
    x = 81,183,149,669.03/276,462.24
  6. Step 6: Final answer
    x = 293,650.05

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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.