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Finding the Third Proportional to 145,296 and 220,117

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Solution

The third proportional to 145,296 and 220,117 is: 333,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,296 : 220,117 = 220,117 : x
  2. Step 2: Convert to fraction form
    145,296/220,117 = 220,117/x
  3. Step 3: Cross multiply
    145,296x = 220,117 × 220,117
  4. Step 4: Simplify right side
    145,296x = 48,451,493,689
  5. Step 5: Solve for x
    x = 48,451,493,689/145,296
  6. Step 6: Final answer
    x = 333,467.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.