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Finding the Third Proportional to 35,280 and 75,480.75

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Solution

The third proportional to 35,280 and 75,480.75 is: 161,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,280 : 75,480.75 = 75,480.75 : x
  2. Step 2: Convert to fraction form
    35,280/75,480.75 = 75,480.75/x
  3. Step 3: Cross multiply
    35,280x = 75,480.75 × 75,480.75
  4. Step 4: Simplify right side
    35,280x = 5,697,343,620.56
  5. Step 5: Solve for x
    x = 5,697,343,620.56/35,280
  6. Step 6: Final answer
    x = 161,489.33

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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.