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Finding the Third Proportional to 256,600 and 369,623

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Solution

The third proportional to 256,600 and 369,623 is: 532,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,600 : 369,623 = 369,623 : x
  2. Step 2: Convert to fraction form
    256,600/369,623 = 369,623/x
  3. Step 3: Cross multiply
    256,600x = 369,623 × 369,623
  4. Step 4: Simplify right side
    256,600x = 136,621,162,129
  5. Step 5: Solve for x
    x = 136,621,162,129/256,600
  6. Step 6: Final answer
    x = 532,428.54

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.