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Finding the Fourth Proportional to 486.92, 670.96 and 337.58

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Solution

The fourth proportional to 486.92, 670.96 and 337.58 is: 465.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.92 : 670.96 = 337.58 : x
  2. Step 2: Convert to fraction form
    486.92/670.96 = 337.58/x
  3. Step 3: Cross multiply
    486.92x = 670.96 × 337.58
  4. Step 4: Simplify right side
    486.92x = 226,502.68
  5. Step 5: Solve for x
    x = 226,502.68/486.92
  6. Step 6: Final answer
    x = 465.17

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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.