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Finding the Third Proportional to 87,358 and 187,178

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Solution

The third proportional to 87,358 and 187,178 is: 401,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,358 : 187,178 = 187,178 : x
  2. Step 2: Convert to fraction form
    87,358/187,178 = 187,178/x
  3. Step 3: Cross multiply
    87,358x = 187,178 × 187,178
  4. Step 4: Simplify right side
    87,358x = 35,035,603,684
  5. Step 5: Solve for x
    x = 35,035,603,684/87,358
  6. Step 6: Final answer
    x = 401,057.76

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.