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Finding the Third Proportional to 348 and 385.50

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Solution

The third proportional to 348 and 385.50 is: 427.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    348 : 385.50 = 385.50 : x
  2. Step 2: Convert to fraction form
    348/385.50 = 385.50/x
  3. Step 3: Cross multiply
    348x = 385.50 × 385.50
  4. Step 4: Simplify right side
    348x = 148,610.25
  5. Step 5: Solve for x
    x = 148,610.25/348
  6. Step 6: Final answer
    x = 427.04

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These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.