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Finding the Fourth Proportional to 218,115.96, 301,010.70 and 122,652.60

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Solution

The fourth proportional to 218,115.96, 301,010.70 and 122,652.60 is: 169,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,115.96 : 301,010.70 = 122,652.60 : x
  2. Step 2: Convert to fraction form
    218,115.96/301,010.70 = 122,652.60/x
  3. Step 3: Cross multiply
    218,115.96x = 301,010.70 × 122,652.60
  4. Step 4: Simplify right side
    218,115.96x = 36,919,744,982.82
  5. Step 5: Solve for x
    x = 36,919,744,982.82/218,115.96
  6. Step 6: Final answer
    x = 169,266.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.