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Finding the Third Proportional to 150,055 and 316,998

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Solution

The third proportional to 150,055 and 316,998 is: 669,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,055 : 316,998 = 316,998 : x
  2. Step 2: Convert to fraction form
    150,055/316,998 = 316,998/x
  3. Step 3: Cross multiply
    150,055x = 316,998 × 316,998
  4. Step 4: Simplify right side
    150,055x = 100,487,732,004
  5. Step 5: Solve for x
    x = 100,487,732,004/150,055
  6. Step 6: Final answer
    x = 669,672.67

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.