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Finding the Fourth Proportional to 276,716.97, 381,898.13 and 169,358.49

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Solution

The fourth proportional to 276,716.97, 381,898.13 and 169,358.49 is: 233,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,716.97 : 381,898.13 = 169,358.49 : x
  2. Step 2: Convert to fraction form
    276,716.97/381,898.13 = 169,358.49/x
  3. Step 3: Cross multiply
    276,716.97x = 381,898.13 × 169,358.49
  4. Step 4: Simplify right side
    276,716.97x = 64,677,689,783.83
  5. Step 5: Solve for x
    x = 64,677,689,783.83/276,716.97
  6. Step 6: Final answer
    x = 233,732.29

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1.5x scale

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.