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Finding the Third Proportional to 156,918 and 223,617

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Solution

The third proportional to 156,918 and 223,617 is: 318,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,918 : 223,617 = 223,617 : x
  2. Step 2: Convert to fraction form
    156,918/223,617 = 223,617/x
  3. Step 3: Cross multiply
    156,918x = 223,617 × 223,617
  4. Step 4: Simplify right side
    156,918x = 50,004,562,689
  5. Step 5: Solve for x
    x = 50,004,562,689/156,918
  6. Step 6: Final answer
    x = 318,666.84

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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.