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Finding the Third Proportional to 179,905.50 and 387,031.50

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Solution

The third proportional to 179,905.50 and 387,031.50 is: 832,622.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,905.50 : 387,031.50 = 387,031.50 : x
  2. Step 2: Convert to fraction form
    179,905.50/387,031.50 = 387,031.50/x
  3. Step 3: Cross multiply
    179,905.50x = 387,031.50 × 387,031.50
  4. Step 4: Simplify right side
    179,905.50x = 149,793,381,992.25
  5. Step 5: Solve for x
    x = 149,793,381,992.25/179,905.50
  6. Step 6: Final answer
    x = 832,622.58

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.