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Finding the Third Proportional to 40,284 and 86,400

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Solution

The third proportional to 40,284 and 86,400 is: 185,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,284 : 86,400 = 86,400 : x
  2. Step 2: Convert to fraction form
    40,284/86,400 = 86,400/x
  3. Step 3: Cross multiply
    40,284x = 86,400 × 86,400
  4. Step 4: Simplify right side
    40,284x = 7,464,960,000
  5. Step 5: Solve for x
    x = 7,464,960,000/40,284
  6. Step 6: Final answer
    x = 185,308.31

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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.