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Finding the Fourth Proportional to 486.10, 670.82 and 265.04

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Solution

The fourth proportional to 486.10, 670.82 and 265.04 is: 365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.10 : 670.82 = 265.04 : x
  2. Step 2: Convert to fraction form
    486.10/670.82 = 265.04/x
  3. Step 3: Cross multiply
    486.10x = 670.82 × 265.04
  4. Step 4: Simplify right side
    486.10x = 177,794.13
  5. Step 5: Solve for x
    x = 177,794.13/486.10
  6. Step 6: Final answer
    x = 365.76

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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.