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Finding the Fourth Proportional to 276,726.16, 381,910.81 and 169,367.68

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Solution

The fourth proportional to 276,726.16, 381,910.81 and 169,367.68 is: 233,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,726.16 : 381,910.81 = 169,367.68 : x
  2. Step 2: Convert to fraction form
    276,726.16/381,910.81 = 169,367.68/x
  3. Step 3: Cross multiply
    276,726.16x = 381,910.81 × 169,367.68
  4. Step 4: Simplify right side
    276,726.16x = 64,683,346,478.42
  5. Step 5: Solve for x
    x = 64,683,346,478.42/276,726.16
  6. Step 6: Final answer
    x = 233,744.97

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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.