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Finding the Third Proportional to 127,386 and 251,640

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Solution

The third proportional to 127,386 and 251,640 is: 497,093.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,386 : 251,640 = 251,640 : x
  2. Step 2: Convert to fraction form
    127,386/251,640 = 251,640/x
  3. Step 3: Cross multiply
    127,386x = 251,640 × 251,640
  4. Step 4: Simplify right side
    127,386x = 63,322,689,600
  5. Step 5: Solve for x
    x = 63,322,689,600/127,386
  6. Step 6: Final answer
    x = 497,093.01

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.