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Finding the Third Proportional to 178,315 and 371,574

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Solution

The third proportional to 178,315 and 371,574 is: 774,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,315 : 371,574 = 371,574 : x
  2. Step 2: Convert to fraction form
    178,315/371,574 = 371,574/x
  3. Step 3: Cross multiply
    178,315x = 371,574 × 371,574
  4. Step 4: Simplify right side
    178,315x = 138,067,237,476
  5. Step 5: Solve for x
    x = 138,067,237,476/178,315
  6. Step 6: Final answer
    x = 774,288.41

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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.