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Finding the Third Proportional to 348.05 and 539.79

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Solution

The third proportional to 348.05 and 539.79 is: 837.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.05 : 539.79 = 539.79 : x
  2. Step 2: Convert to fraction form
    348.05/539.79 = 539.79/x
  3. Step 3: Cross multiply
    348.05x = 539.79 × 539.79
  4. Step 4: Simplify right side
    348.05x = 291,372.23
  5. Step 5: Solve for x
    x = 291,372.23/348.05
  6. Step 6: Final answer
    x = 837.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.