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Finding the Third Proportional to 703.69 and 753.05

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Solution

The third proportional to 703.69 and 753.05 is: 805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.69 : 753.05 = 753.05 : x
  2. Step 2: Convert to fraction form
    703.69/753.05 = 753.05/x
  3. Step 3: Cross multiply
    703.69x = 753.05 × 753.05
  4. Step 4: Simplify right side
    703.69x = 567,079.60
  5. Step 5: Solve for x
    x = 567,079.60/703.69
  6. Step 6: Final answer
    x = 805.87

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.