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Finding the Third Proportional to 572.91 and 1,236.09

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Solution

The third proportional to 572.91 and 1,236.09 is: 2,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.91 : 1,236.09 = 1,236.09 : x
  2. Step 2: Convert to fraction form
    572.91/1,236.09 = 1,236.09/x
  3. Step 3: Cross multiply
    572.91x = 1,236.09 × 1,236.09
  4. Step 4: Simplify right side
    572.91x = 1,527,927.76
  5. Step 5: Solve for x
    x = 1,527,927.76/572.91
  6. Step 6: Final answer
    x = 2,666.98

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.