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Finding the Third Proportional to 431.16 and 930.38

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Solution

The third proportional to 431.16 and 930.38 is: 2,007.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.16 : 930.38 = 930.38 : x
  2. Step 2: Convert to fraction form
    431.16/930.38 = 930.38/x
  3. Step 3: Cross multiply
    431.16x = 930.38 × 930.38
  4. Step 4: Simplify right side
    431.16x = 865,597.64
  5. Step 5: Solve for x
    x = 865,597.64/431.16
  6. Step 6: Final answer
    x = 2,007.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.