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Finding the Third Proportional to 164,218 and 355,426

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Solution

The third proportional to 164,218 and 355,426 is: 769,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,218 : 355,426 = 355,426 : x
  2. Step 2: Convert to fraction form
    164,218/355,426 = 355,426/x
  3. Step 3: Cross multiply
    164,218x = 355,426 × 355,426
  4. Step 4: Simplify right side
    164,218x = 126,327,641,476
  5. Step 5: Solve for x
    x = 126,327,641,476/164,218
  6. Step 6: Final answer
    x = 769,267.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.