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Finding the Third Proportional to 310,324.50 and 416,200.50

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Solution

The third proportional to 310,324.50 and 416,200.50 is: 558,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,324.50 : 416,200.50 = 416,200.50 : x
  2. Step 2: Convert to fraction form
    310,324.50/416,200.50 = 416,200.50/x
  3. Step 3: Cross multiply
    310,324.50x = 416,200.50 × 416,200.50
  4. Step 4: Simplify right side
    310,324.50x = 173,222,856,200.25
  5. Step 5: Solve for x
    x = 173,222,856,200.25/310,324.50
  6. Step 6: Final answer
    x = 558,199.10

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.