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Finding the Third Proportional to 178,488 and 371,760

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Solution

The third proportional to 178,488 and 371,760 is: 774,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,488 : 371,760 = 371,760 : x
  2. Step 2: Convert to fraction form
    178,488/371,760 = 371,760/x
  3. Step 3: Cross multiply
    178,488x = 371,760 × 371,760
  4. Step 4: Simplify right side
    178,488x = 138,205,497,600
  5. Step 5: Solve for x
    x = 138,205,497,600/178,488
  6. Step 6: Final answer
    x = 774,312.55

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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.