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Finding the Third Proportional to 253.13 and 559.83

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Solution

The third proportional to 253.13 and 559.83 is: 1,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.13 : 559.83 = 559.83 : x
  2. Step 2: Convert to fraction form
    253.13/559.83 = 559.83/x
  3. Step 3: Cross multiply
    253.13x = 559.83 × 559.83
  4. Step 4: Simplify right side
    253.13x = 313,407.53
  5. Step 5: Solve for x
    x = 313,407.53/253.13
  6. Step 6: Final answer
    x = 1,238.15

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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.