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Finding the Third Proportional to 250.88 and 555.13

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Solution

The third proportional to 250.88 and 555.13 is: 1,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.88 : 555.13 = 555.13 : x
  2. Step 2: Convert to fraction form
    250.88/555.13 = 555.13/x
  3. Step 3: Cross multiply
    250.88x = 555.13 × 555.13
  4. Step 4: Simplify right side
    250.88x = 308,163.77
  5. Step 5: Solve for x
    x = 308,163.77/250.88
  6. Step 6: Final answer
    x = 1,228.36

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.