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Finding the Third Proportional to 156,415.50 and 343,935

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Solution

The third proportional to 156,415.50 and 343,935 is: 756,263.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,415.50 : 343,935 = 343,935 : x
  2. Step 2: Convert to fraction form
    156,415.50/343,935 = 343,935/x
  3. Step 3: Cross multiply
    156,415.50x = 343,935 × 343,935
  4. Step 4: Simplify right side
    156,415.50x = 118,291,284,225
  5. Step 5: Solve for x
    x = 118,291,284,225/156,415.50
  6. Step 6: Final answer
    x = 756,263.19

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.