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Finding the Third Proportional to 129,618 and 185,355

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Solution

The third proportional to 129,618 and 185,355 is: 265,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,618 : 185,355 = 185,355 : x
  2. Step 2: Convert to fraction form
    129,618/185,355 = 185,355/x
  3. Step 3: Cross multiply
    129,618x = 185,355 × 185,355
  4. Step 4: Simplify right side
    129,618x = 34,356,476,025
  5. Step 5: Solve for x
    x = 34,356,476,025/129,618
  6. Step 6: Final answer
    x = 265,059.45

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.