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Finding the Third Proportional to 243.38 and 348

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Solution

The third proportional to 243.38 and 348 is: 497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.38 : 348 = 348 : x
  2. Step 2: Convert to fraction form
    243.38/348 = 348/x
  3. Step 3: Cross multiply
    243.38x = 348 × 348
  4. Step 4: Simplify right side
    243.38x = 121,104
  5. Step 5: Solve for x
    x = 121,104/243.38
  6. Step 6: Final answer
    x = 497.60

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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.