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Finding the Third Proportional to 156,735 and 242,163

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Solution

The third proportional to 156,735 and 242,163 is: 374,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,735 : 242,163 = 242,163 : x
  2. Step 2: Convert to fraction form
    156,735/242,163 = 242,163/x
  3. Step 3: Cross multiply
    156,735x = 242,163 × 242,163
  4. Step 4: Simplify right side
    156,735x = 58,642,918,569
  5. Step 5: Solve for x
    x = 58,642,918,569/156,735
  6. Step 6: Final answer
    x = 374,153.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.