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Finding the Third Proportional to 143,835 and 220,131

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Solution

The third proportional to 143,835 and 220,131 is: 336,897.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,835 : 220,131 = 220,131 : x
  2. Step 2: Convert to fraction form
    143,835/220,131 = 220,131/x
  3. Step 3: Cross multiply
    143,835x = 220,131 × 220,131
  4. Step 4: Simplify right side
    143,835x = 48,457,657,161
  5. Step 5: Solve for x
    x = 48,457,657,161/143,835
  6. Step 6: Final answer
    x = 336,897.54

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.