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Finding the Third Proportional to 301,400 and 409,344

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Solution

The third proportional to 301,400 and 409,344 is: 555,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,400 : 409,344 = 409,344 : x
  2. Step 2: Convert to fraction form
    301,400/409,344 = 409,344/x
  3. Step 3: Cross multiply
    301,400x = 409,344 × 409,344
  4. Step 4: Simplify right side
    301,400x = 167,562,510,336
  5. Step 5: Solve for x
    x = 167,562,510,336/301,400
  6. Step 6: Final answer
    x = 555,947.28

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.