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Finding the Third Proportional to 268,650 and 399,222

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Solution

The third proportional to 268,650 and 399,222 is: 593,255.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,650 : 399,222 = 399,222 : x
  2. Step 2: Convert to fraction form
    268,650/399,222 = 399,222/x
  3. Step 3: Cross multiply
    268,650x = 399,222 × 399,222
  4. Step 4: Simplify right side
    268,650x = 159,378,205,284
  5. Step 5: Solve for x
    x = 159,378,205,284/268,650
  6. Step 6: Final answer
    x = 593,255.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.