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Finding the Third Proportional to 156,316 and 242,198

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Solution

The third proportional to 156,316 and 242,198 is: 375,264.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,316 : 242,198 = 242,198 : x
  2. Step 2: Convert to fraction form
    156,316/242,198 = 242,198/x
  3. Step 3: Cross multiply
    156,316x = 242,198 × 242,198
  4. Step 4: Simplify right side
    156,316x = 58,659,871,204
  5. Step 5: Solve for x
    x = 58,659,871,204/156,316
  6. Step 6: Final answer
    x = 375,264.66

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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.