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Finding the Third Proportional to 296.16 and 434.11

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Solution

The third proportional to 296.16 and 434.11 is: 636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.16 : 434.11 = 434.11 : x
  2. Step 2: Convert to fraction form
    296.16/434.11 = 434.11/x
  3. Step 3: Cross multiply
    296.16x = 434.11 × 434.11
  4. Step 4: Simplify right side
    296.16x = 188,450.95
  5. Step 5: Solve for x
    x = 188,450.95/296.16
  6. Step 6: Final answer
    x = 636.32

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.