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Finding the Third Proportional to 143,740.13 and 215,955

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Solution

The third proportional to 143,740.13 and 215,955 is: 324,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,740.13 : 215,955 = 215,955 : x
  2. Step 2: Convert to fraction form
    143,740.13/215,955 = 215,955/x
  3. Step 3: Cross multiply
    143,740.13x = 215,955 × 215,955
  4. Step 4: Simplify right side
    143,740.13x = 46,636,562,025
  5. Step 5: Solve for x
    x = 46,636,562,025/143,740.13
  6. Step 6: Final answer
    x = 324,450.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.