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Finding the Third Proportional to 178,307 and 371,559

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Solution

The third proportional to 178,307 and 371,559 is: 774,260.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,307 : 371,559 = 371,559 : x
  2. Step 2: Convert to fraction form
    178,307/371,559 = 371,559/x
  3. Step 3: Cross multiply
    178,307x = 371,559 × 371,559
  4. Step 4: Simplify right side
    178,307x = 138,056,090,481
  5. Step 5: Solve for x
    x = 138,056,090,481/178,307
  6. Step 6: Final answer
    x = 774,260.63

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.