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Finding the Third Proportional to 268,240 and 402,392

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Solution

The third proportional to 268,240 and 402,392 is: 603,636.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,240 : 402,392 = 402,392 : x
  2. Step 2: Convert to fraction form
    268,240/402,392 = 402,392/x
  3. Step 3: Cross multiply
    268,240x = 402,392 × 402,392
  4. Step 4: Simplify right side
    268,240x = 161,919,321,664
  5. Step 5: Solve for x
    x = 161,919,321,664/268,240
  6. Step 6: Final answer
    x = 603,636.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.