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Finding the Third Proportional to 162,121.50 and 353,767.50

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Solution

The third proportional to 162,121.50 and 353,767.50 is: 771,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,121.50 : 353,767.50 = 353,767.50 : x
  2. Step 2: Convert to fraction form
    162,121.50/353,767.50 = 353,767.50/x
  3. Step 3: Cross multiply
    162,121.50x = 353,767.50 × 353,767.50
  4. Step 4: Simplify right side
    162,121.50x = 125,151,444,056.25
  5. Step 5: Solve for x
    x = 125,151,444,056.25/162,121.50
  6. Step 6: Final answer
    x = 771,960.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.