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Finding the Third Proportional to 71,115 and 155,352

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Solution

The third proportional to 71,115 and 155,352 is: 339,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,115 : 155,352 = 155,352 : x
  2. Step 2: Convert to fraction form
    71,115/155,352 = 155,352/x
  3. Step 3: Cross multiply
    71,115x = 155,352 × 155,352
  4. Step 4: Simplify right side
    71,115x = 24,134,243,904
  5. Step 5: Solve for x
    x = 24,134,243,904/71,115
  6. Step 6: Final answer
    x = 339,369.25

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.