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Finding the Third Proportional to 108,479 and 235,618

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Solution

The third proportional to 108,479 and 235,618 is: 511,765.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,479 : 235,618 = 235,618 : x
  2. Step 2: Convert to fraction form
    108,479/235,618 = 235,618/x
  3. Step 3: Cross multiply
    108,479x = 235,618 × 235,618
  4. Step 4: Simplify right side
    108,479x = 55,515,841,924
  5. Step 5: Solve for x
    x = 55,515,841,924/108,479
  6. Step 6: Final answer
    x = 511,765.80

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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.