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Finding the Third Proportional to 178,857 and 372,402

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Solution

The third proportional to 178,857 and 372,402 is: 775,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,857 : 372,402 = 372,402 : x
  2. Step 2: Convert to fraction form
    178,857/372,402 = 372,402/x
  3. Step 3: Cross multiply
    178,857x = 372,402 × 372,402
  4. Step 4: Simplify right side
    178,857x = 138,683,249,604
  5. Step 5: Solve for x
    x = 138,683,249,604/178,857
  6. Step 6: Final answer
    x = 775,386.20

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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.