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Finding the Third Proportional to 65,556.84 and 143,988.89

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Solution

The third proportional to 65,556.84 and 143,988.89 is: 316,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,556.84 : 143,988.89 = 143,988.89 : x
  2. Step 2: Convert to fraction form
    65,556.84/143,988.89 = 143,988.89/x
  3. Step 3: Cross multiply
    65,556.84x = 143,988.89 × 143,988.89
  4. Step 4: Simplify right side
    65,556.84x = 20,732,800,623.42
  5. Step 5: Solve for x
    x = 20,732,800,623.42/65,556.84
  6. Step 6: Final answer
    x = 316,256.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.