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Finding the Third Proportional to 144,817 and 221,535

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Solution

The third proportional to 144,817 and 221,535 is: 338,894.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,817 : 221,535 = 221,535 : x
  2. Step 2: Convert to fraction form
    144,817/221,535 = 221,535/x
  3. Step 3: Cross multiply
    144,817x = 221,535 × 221,535
  4. Step 4: Simplify right side
    144,817x = 49,077,756,225
  5. Step 5: Solve for x
    x = 49,077,756,225/144,817
  6. Step 6: Final answer
    x = 338,894.99

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.