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Finding the Third Proportional to 143,781.75 and 302,437.13

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Solution

The third proportional to 143,781.75 and 302,437.13 is: 636,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,781.75 : 302,437.13 = 302,437.13 : x
  2. Step 2: Convert to fraction form
    143,781.75/302,437.13 = 302,437.13/x
  3. Step 3: Cross multiply
    143,781.75x = 302,437.13 × 302,437.13
  4. Step 4: Simplify right side
    143,781.75x = 91,468,214,578.27
  5. Step 5: Solve for x
    x = 91,468,214,578.27/143,781.75
  6. Step 6: Final answer
    x = 636,160.11

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.