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Finding the Third Proportional to 30.43 and 44.58

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Solution

The third proportional to 30.43 and 44.58 is: 65.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.43 : 44.58 = 44.58 : x
  2. Step 2: Convert to fraction form
    30.43/44.58 = 44.58/x
  3. Step 3: Cross multiply
    30.43x = 44.58 × 44.58
  4. Step 4: Simplify right side
    30.43x = 1,987.70
  5. Step 5: Solve for x
    x = 1,987.70/30.43
  6. Step 6: Final answer
    x = 65.31

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.