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Finding the Third Proportional to 156,416 and 342,234

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Solution

The third proportional to 156,416 and 342,234 is: 748,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,416 : 342,234 = 342,234 : x
  2. Step 2: Convert to fraction form
    156,416/342,234 = 342,234/x
  3. Step 3: Cross multiply
    156,416x = 342,234 × 342,234
  4. Step 4: Simplify right side
    156,416x = 117,124,110,756
  5. Step 5: Solve for x
    x = 117,124,110,756/156,416
  6. Step 6: Final answer
    x = 748,798.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.