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Finding the Third Proportional to 119,931 and 258,003

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Solution

The third proportional to 119,931 and 258,003 is: 555,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,931 : 258,003 = 258,003 : x
  2. Step 2: Convert to fraction form
    119,931/258,003 = 258,003/x
  3. Step 3: Cross multiply
    119,931x = 258,003 × 258,003
  4. Step 4: Simplify right side
    119,931x = 66,565,548,009
  5. Step 5: Solve for x
    x = 66,565,548,009/119,931
  6. Step 6: Final answer
    x = 555,032.04

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.