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Finding the Third Proportional to 86,090 and 186,476

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Solution

The third proportional to 86,090 and 186,476 is: 403,917.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,090 : 186,476 = 186,476 : x
  2. Step 2: Convert to fraction form
    86,090/186,476 = 186,476/x
  3. Step 3: Cross multiply
    86,090x = 186,476 × 186,476
  4. Step 4: Simplify right side
    86,090x = 34,773,298,576
  5. Step 5: Solve for x
    x = 34,773,298,576/86,090
  6. Step 6: Final answer
    x = 403,917.98

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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.