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Finding the Third Proportional to 435.38 and 930.66

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Solution

The third proportional to 435.38 and 930.66 is: 1,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.38 : 930.66 = 930.66 : x
  2. Step 2: Convert to fraction form
    435.38/930.66 = 930.66/x
  3. Step 3: Cross multiply
    435.38x = 930.66 × 930.66
  4. Step 4: Simplify right side
    435.38x = 866,121.06
  5. Step 5: Solve for x
    x = 866,121.06/435.38
  6. Step 6: Final answer
    x = 1,989.37

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.