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Finding the Third Proportional to 30,300.25 and 70,769

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Solution

The third proportional to 30,300.25 and 70,769 is: 165,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,300.25 : 70,769 = 70,769 : x
  2. Step 2: Convert to fraction form
    30,300.25/70,769 = 70,769/x
  3. Step 3: Cross multiply
    30,300.25x = 70,769 × 70,769
  4. Step 4: Simplify right side
    30,300.25x = 5,008,251,361
  5. Step 5: Solve for x
    x = 5,008,251,361/30,300.25
  6. Step 6: Final answer
    x = 165,287.46

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.