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Finding the Third Proportional to 263.53 and 555.12

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Solution

The third proportional to 263.53 and 555.12 is: 1,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.53 : 555.12 = 555.12 : x
  2. Step 2: Convert to fraction form
    263.53/555.12 = 555.12/x
  3. Step 3: Cross multiply
    263.53x = 555.12 × 555.12
  4. Step 4: Simplify right side
    263.53x = 308,155.09
  5. Step 5: Solve for x
    x = 308,155.09/263.53
  6. Step 6: Final answer
    x = 1,169.33

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.