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Finding the Third Proportional to 258.75 and 362

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Solution

The third proportional to 258.75 and 362 is: 506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258.75 : 362 = 362 : x
  2. Step 2: Convert to fraction form
    258.75/362 = 362/x
  3. Step 3: Cross multiply
    258.75x = 362 × 362
  4. Step 4: Simplify right side
    258.75x = 131,044
  5. Step 5: Solve for x
    x = 131,044/258.75
  6. Step 6: Final answer
    x = 506.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.