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Finding the Third Proportional to 111 and 232.50

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Solution

The third proportional to 111 and 232.50 is: 486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    111 : 232.50 = 232.50 : x
  2. Step 2: Convert to fraction form
    111/232.50 = 232.50/x
  3. Step 3: Cross multiply
    111x = 232.50 × 232.50
  4. Step 4: Simplify right side
    111x = 54,056.25
  5. Step 5: Solve for x
    x = 54,056.25/111
  6. Step 6: Final answer
    x = 486.99

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.