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Finding the Third Proportional to 264.75 and 436.38

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Solution

The third proportional to 264.75 and 436.38 is: 719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.75 : 436.38 = 436.38 : x
  2. Step 2: Convert to fraction form
    264.75/436.38 = 436.38/x
  3. Step 3: Cross multiply
    264.75x = 436.38 × 436.38
  4. Step 4: Simplify right side
    264.75x = 190,423.14
  5. Step 5: Solve for x
    x = 190,423.14/264.75
  6. Step 6: Final answer
    x = 719.26

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.