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Finding the Third Proportional to 155,518 and 211,026

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Solution

The third proportional to 155,518 and 211,026 is: 286,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,518 : 211,026 = 211,026 : x
  2. Step 2: Convert to fraction form
    155,518/211,026 = 211,026/x
  3. Step 3: Cross multiply
    155,518x = 211,026 × 211,026
  4. Step 4: Simplify right side
    155,518x = 44,531,972,676
  5. Step 5: Solve for x
    x = 44,531,972,676/155,518
  6. Step 6: Final answer
    x = 286,346.10

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.