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Finding the Third Proportional to 253,964 and 379,700

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Solution

The third proportional to 253,964 and 379,700 is: 567,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,964 : 379,700 = 379,700 : x
  2. Step 2: Convert to fraction form
    253,964/379,700 = 379,700/x
  3. Step 3: Cross multiply
    253,964x = 379,700 × 379,700
  4. Step 4: Simplify right side
    253,964x = 144,172,090,000
  5. Step 5: Solve for x
    x = 144,172,090,000/253,964
  6. Step 6: Final answer
    x = 567,687.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.