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Finding the Third Proportional to 205,144 and 310,447

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Solution

The third proportional to 205,144 and 310,447 is: 469,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,144 : 310,447 = 310,447 : x
  2. Step 2: Convert to fraction form
    205,144/310,447 = 310,447/x
  3. Step 3: Cross multiply
    205,144x = 310,447 × 310,447
  4. Step 4: Simplify right side
    205,144x = 96,377,339,809
  5. Step 5: Solve for x
    x = 96,377,339,809/205,144
  6. Step 6: Final answer
    x = 469,803.36

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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.