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Finding the Third Proportional to 82,412 and 177,964

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Solution

The third proportional to 82,412 and 177,964 is: 384,303.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,412 : 177,964 = 177,964 : x
  2. Step 2: Convert to fraction form
    82,412/177,964 = 177,964/x
  3. Step 3: Cross multiply
    82,412x = 177,964 × 177,964
  4. Step 4: Simplify right side
    82,412x = 31,671,185,296
  5. Step 5: Solve for x
    x = 31,671,185,296/82,412
  6. Step 6: Final answer
    x = 384,303.08

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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.