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Finding the Third Proportional to 261,462 and 554,318

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Solution

The third proportional to 261,462 and 554,318 is: 1,175,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,462 : 554,318 = 554,318 : x
  2. Step 2: Convert to fraction form
    261,462/554,318 = 554,318/x
  3. Step 3: Cross multiply
    261,462x = 554,318 × 554,318
  4. Step 4: Simplify right side
    261,462x = 307,268,445,124
  5. Step 5: Solve for x
    x = 307,268,445,124/261,462
  6. Step 6: Final answer
    x = 1,175,193.51

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.