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Finding the Third Proportional to 262,093 and 392,728

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Solution

The third proportional to 262,093 and 392,728 is: 588,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,093 : 392,728 = 392,728 : x
  2. Step 2: Convert to fraction form
    262,093/392,728 = 392,728/x
  3. Step 3: Cross multiply
    262,093x = 392,728 × 392,728
  4. Step 4: Simplify right side
    262,093x = 154,235,281,984
  5. Step 5: Solve for x
    x = 154,235,281,984/262,093
  6. Step 6: Final answer
    x = 588,475.40

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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.