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Finding the Third Proportional to 223,959 and 339,492

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Solution

The third proportional to 223,959 and 339,492 is: 514,624.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,959 : 339,492 = 339,492 : x
  2. Step 2: Convert to fraction form
    223,959/339,492 = 339,492/x
  3. Step 3: Cross multiply
    223,959x = 339,492 × 339,492
  4. Step 4: Simplify right side
    223,959x = 115,254,818,064
  5. Step 5: Solve for x
    x = 115,254,818,064/223,959
  6. Step 6: Final answer
    x = 514,624.63

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.