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Finding the Third Proportional to 135,216 and 214,710.75

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Solution

The third proportional to 135,216 and 214,710.75 is: 340,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,216 : 214,710.75 = 214,710.75 : x
  2. Step 2: Convert to fraction form
    135,216/214,710.75 = 214,710.75/x
  3. Step 3: Cross multiply
    135,216x = 214,710.75 × 214,710.75
  4. Step 4: Simplify right side
    135,216x = 46,100,706,165.56
  5. Step 5: Solve for x
    x = 46,100,706,165.56/135,216
  6. Step 6: Final answer
    x = 340,941.21

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.