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Finding the Third Proportional to 255,007.75 and 385,791.25

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Solution

The third proportional to 255,007.75 and 385,791.25 is: 583,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,007.75 : 385,791.25 = 385,791.25 : x
  2. Step 2: Convert to fraction form
    255,007.75/385,791.25 = 385,791.25/x
  3. Step 3: Cross multiply
    255,007.75x = 385,791.25 × 385,791.25
  4. Step 4: Simplify right side
    255,007.75x = 148,834,888,576.56
  5. Step 5: Solve for x
    x = 148,834,888,576.56/255,007.75
  6. Step 6: Final answer
    x = 583,648.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.