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Finding the Fourth Proportional to 276,889.77, 382,108.05 and 149,565.42

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Solution

The fourth proportional to 276,889.77, 382,108.05 and 149,565.42 is: 206,400.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,889.77 : 382,108.05 = 149,565.42 : x
  2. Step 2: Convert to fraction form
    276,889.77/382,108.05 = 149,565.42/x
  3. Step 3: Cross multiply
    276,889.77x = 382,108.05 × 149,565.42
  4. Step 4: Simplify right side
    276,889.77x = 57,150,150,983.63
  5. Step 5: Solve for x
    x = 57,150,150,983.63/276,889.77
  6. Step 6: Final answer
    x = 206,400.37

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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.