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Finding the Fourth Proportional to 486.29, 671.08 and 265.23

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Solution

The fourth proportional to 486.29, 671.08 and 265.23 is: 366.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.29 : 671.08 = 265.23 : x
  2. Step 2: Convert to fraction form
    486.29/671.08 = 265.23/x
  3. Step 3: Cross multiply
    486.29x = 671.08 × 265.23
  4. Step 4: Simplify right side
    486.29x = 177,990.55
  5. Step 5: Solve for x
    x = 177,990.55/486.29
  6. Step 6: Final answer
    x = 366.02

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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.