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Finding the Third Proportional to 133,111 and 288,353

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Solution

The third proportional to 133,111 and 288,353 is: 624,647.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,111 : 288,353 = 288,353 : x
  2. Step 2: Convert to fraction form
    133,111/288,353 = 288,353/x
  3. Step 3: Cross multiply
    133,111x = 288,353 × 288,353
  4. Step 4: Simplify right side
    133,111x = 83,147,452,609
  5. Step 5: Solve for x
    x = 83,147,452,609/133,111
  6. Step 6: Final answer
    x = 624,647.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.