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Finding the Third Proportional to 144,855 and 221,602.50

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Solution

The third proportional to 144,855 and 221,602.50 is: 339,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,855 : 221,602.50 = 221,602.50 : x
  2. Step 2: Convert to fraction form
    144,855/221,602.50 = 221,602.50/x
  3. Step 3: Cross multiply
    144,855x = 221,602.50 × 221,602.50
  4. Step 4: Simplify right side
    144,855x = 49,107,668,006.25
  5. Step 5: Solve for x
    x = 49,107,668,006.25/144,855
  6. Step 6: Final answer
    x = 339,012.59

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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.