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Finding the Third Proportional to 251,388.25 and 351,643.13

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Solution

The third proportional to 251,388.25 and 351,643.13 is: 491,880.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,388.25 : 351,643.13 = 351,643.13 : x
  2. Step 2: Convert to fraction form
    251,388.25/351,643.13 = 351,643.13/x
  3. Step 3: Cross multiply
    251,388.25x = 351,643.13 × 351,643.13
  4. Step 4: Simplify right side
    251,388.25x = 123,652,887,359.77
  5. Step 5: Solve for x
    x = 123,652,887,359.77/251,388.25
  6. Step 6: Final answer
    x = 491,880.14

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.