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Finding the Third Proportional to 108.79 and 235.62

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Solution

The third proportional to 108.79 and 235.62 is: 510.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.79 : 235.62 = 235.62 : x
  2. Step 2: Convert to fraction form
    108.79/235.62 = 235.62/x
  3. Step 3: Cross multiply
    108.79x = 235.62 × 235.62
  4. Step 4: Simplify right side
    108.79x = 55,515.46
  5. Step 5: Solve for x
    x = 55,515.46/108.79
  6. Step 6: Final answer
    x = 510.29

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.