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Finding the Third Proportional to 86,070 and 187,716

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Solution

The third proportional to 86,070 and 187,716 is: 409,402.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,070 : 187,716 = 187,716 : x
  2. Step 2: Convert to fraction form
    86,070/187,716 = 187,716/x
  3. Step 3: Cross multiply
    86,070x = 187,716 × 187,716
  4. Step 4: Simplify right side
    86,070x = 35,237,296,656
  5. Step 5: Solve for x
    x = 35,237,296,656/86,070
  6. Step 6: Final answer
    x = 409,402.77

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.