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Finding the Third Proportional to 144,010 and 215,439

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Solution

The third proportional to 144,010 and 215,439 is: 322,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,010 : 215,439 = 215,439 : x
  2. Step 2: Convert to fraction form
    144,010/215,439 = 215,439/x
  3. Step 3: Cross multiply
    144,010x = 215,439 × 215,439
  4. Step 4: Simplify right side
    144,010x = 46,413,962,721
  5. Step 5: Solve for x
    x = 46,413,962,721/144,010
  6. Step 6: Final answer
    x = 322,296.80

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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.