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Finding the Third Proportional to 435.75 and 930.47

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Solution

The third proportional to 435.75 and 930.47 is: 1,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.75 : 930.47 = 930.47 : x
  2. Step 2: Convert to fraction form
    435.75/930.47 = 930.47/x
  3. Step 3: Cross multiply
    435.75x = 930.47 × 930.47
  4. Step 4: Simplify right side
    435.75x = 865,772.09
  5. Step 5: Solve for x
    x = 865,772.09/435.75
  6. Step 6: Final answer
    x = 1,986.86

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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.