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Finding the Third Proportional to 248,436 and 393,552

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Solution

The third proportional to 248,436 and 393,552 is: 623,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,436 : 393,552 = 393,552 : x
  2. Step 2: Convert to fraction form
    248,436/393,552 = 393,552/x
  3. Step 3: Cross multiply
    248,436x = 393,552 × 393,552
  4. Step 4: Simplify right side
    248,436x = 154,883,176,704
  5. Step 5: Solve for x
    x = 154,883,176,704/248,436
  6. Step 6: Final answer
    x = 623,432.90

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.