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Finding the Third Proportional to 119,314 and 257,318

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Solution

The third proportional to 119,314 and 257,318 is: 554,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,314 : 257,318 = 257,318 : x
  2. Step 2: Convert to fraction form
    119,314/257,318 = 257,318/x
  3. Step 3: Cross multiply
    119,314x = 257,318 × 257,318
  4. Step 4: Simplify right side
    119,314x = 66,212,553,124
  5. Step 5: Solve for x
    x = 66,212,553,124/119,314
  6. Step 6: Final answer
    x = 554,943.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.