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Finding the Third Proportional to 119,216 and 257,791

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Solution

The third proportional to 119,216 and 257,791 is: 557,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,216 : 257,791 = 257,791 : x
  2. Step 2: Convert to fraction form
    119,216/257,791 = 257,791/x
  3. Step 3: Cross multiply
    119,216x = 257,791 × 257,791
  4. Step 4: Simplify right side
    119,216x = 66,456,199,681
  5. Step 5: Solve for x
    x = 66,456,199,681/119,216
  6. Step 6: Final answer
    x = 557,443.63

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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.