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Finding the Third Proportional to 222,121.50 and 316,567.50

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Solution

The third proportional to 222,121.50 and 316,567.50 is: 451,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,121.50 : 316,567.50 = 316,567.50 : x
  2. Step 2: Convert to fraction form
    222,121.50/316,567.50 = 316,567.50/x
  3. Step 3: Cross multiply
    222,121.50x = 316,567.50 × 316,567.50
  4. Step 4: Simplify right side
    222,121.50x = 100,214,982,056.25
  5. Step 5: Solve for x
    x = 100,214,982,056.25/222,121.50
  6. Step 6: Final answer
    x = 451,171.91

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.