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Finding the Fourth Proportional to 360.92, 538.84 and 326.90

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Solution

The fourth proportional to 360.92, 538.84 and 326.90 is: 488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.92 : 538.84 = 326.90 : x
  2. Step 2: Convert to fraction form
    360.92/538.84 = 326.90/x
  3. Step 3: Cross multiply
    360.92x = 538.84 × 326.90
  4. Step 4: Simplify right side
    360.92x = 176,146.80
  5. Step 5: Solve for x
    x = 176,146.80/360.92
  6. Step 6: Final answer
    x = 488.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.