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Finding the Fourth Proportional to 218,383.49, 301,369.08 and 122,890.27

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Solution

The fourth proportional to 218,383.49, 301,369.08 and 122,890.27 is: 169,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,383.49 : 301,369.08 = 122,890.27 : x
  2. Step 2: Convert to fraction form
    218,383.49/301,369.08 = 122,890.27/x
  3. Step 3: Cross multiply
    218,383.49x = 301,369.08 × 122,890.27
  4. Step 4: Simplify right side
    218,383.49x = 37,035,327,610.85
  5. Step 5: Solve for x
    x = 37,035,327,610.85/218,383.49
  6. Step 6: Final answer
    x = 169,588.50

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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.