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Finding the Fourth Proportional to 486.41, 671.26 and 265.35

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Solution

The fourth proportional to 486.41, 671.26 and 265.35 is: 366.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.41 : 671.26 = 265.35 : x
  2. Step 2: Convert to fraction form
    486.41/671.26 = 265.35/x
  3. Step 3: Cross multiply
    486.41x = 671.26 × 265.35
  4. Step 4: Simplify right side
    486.41x = 178,114.16
  5. Step 5: Solve for x
    x = 178,114.16/486.41
  6. Step 6: Final answer
    x = 366.18

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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.