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Finding the Third Proportional to 248.50 and 492.50

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Solution

The third proportional to 248.50 and 492.50 is: 976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.50 : 492.50 = 492.50 : x
  2. Step 2: Convert to fraction form
    248.50/492.50 = 492.50/x
  3. Step 3: Cross multiply
    248.50x = 492.50 × 492.50
  4. Step 4: Simplify right side
    248.50x = 242,556.25
  5. Step 5: Solve for x
    x = 242,556.25/248.50
  6. Step 6: Final answer
    x = 976.08

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.