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Finding the Third Proportional to 119,156 and 257,670

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Solution

The third proportional to 119,156 and 257,670 is: 557,200.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,156 : 257,670 = 257,670 : x
  2. Step 2: Convert to fraction form
    119,156/257,670 = 257,670/x
  3. Step 3: Cross multiply
    119,156x = 257,670 × 257,670
  4. Step 4: Simplify right side
    119,156x = 66,393,828,900
  5. Step 5: Solve for x
    x = 66,393,828,900/119,156
  6. Step 6: Final answer
    x = 557,200.89

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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.