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Finding the Third Proportional to 255,642.75 and 553,601.25

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Solution

The third proportional to 255,642.75 and 553,601.25 is: 1,198,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,642.75 : 553,601.25 = 553,601.25 : x
  2. Step 2: Convert to fraction form
    255,642.75/553,601.25 = 553,601.25/x
  3. Step 3: Cross multiply
    255,642.75x = 553,601.25 × 553,601.25
  4. Step 4: Simplify right side
    255,642.75x = 306,474,344,001.56
  5. Step 5: Solve for x
    x = 306,474,344,001.56/255,642.75
  6. Step 6: Final answer
    x = 1,198,838.39

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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.