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Finding the Third Proportional to 156,270 and 336,270

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Solution

The third proportional to 156,270 and 336,270 is: 723,603.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,270 : 336,270 = 336,270 : x
  2. Step 2: Convert to fraction form
    156,270/336,270 = 336,270/x
  3. Step 3: Cross multiply
    156,270x = 336,270 × 336,270
  4. Step 4: Simplify right side
    156,270x = 113,077,512,900
  5. Step 5: Solve for x
    x = 113,077,512,900/156,270
  6. Step 6: Final answer
    x = 723,603.46

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.