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Finding the Third Proportional to 356,467.50 and 518,649.75

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Solution

The third proportional to 356,467.50 and 518,649.75 is: 754,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,467.50 : 518,649.75 = 518,649.75 : x
  2. Step 2: Convert to fraction form
    356,467.50/518,649.75 = 518,649.75/x
  3. Step 3: Cross multiply
    356,467.50x = 518,649.75 × 518,649.75
  4. Step 4: Simplify right side
    356,467.50x = 268,997,563,175.06
  5. Step 5: Solve for x
    x = 268,997,563,175.06/356,467.50
  6. Step 6: Final answer
    x = 754,620.16

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.