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Finding the Third Proportional to 248.63 and 539.13

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Solution

The third proportional to 248.63 and 539.13 is: 1,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.63 : 539.13 = 539.13 : x
  2. Step 2: Convert to fraction form
    248.63/539.13 = 539.13/x
  3. Step 3: Cross multiply
    248.63x = 539.13 × 539.13
  4. Step 4: Simplify right side
    248.63x = 290,655.77
  5. Step 5: Solve for x
    x = 290,655.77/248.63
  6. Step 6: Final answer
    x = 1,169.05

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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.