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Finding the Fourth Proportional to 219,781.89, 303,299.03 and 119,179.89

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Solution

The fourth proportional to 219,781.89, 303,299.03 and 119,179.89 is: 164,468.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,781.89 : 303,299.03 = 119,179.89 : x
  2. Step 2: Convert to fraction form
    219,781.89/303,299.03 = 119,179.89/x
  3. Step 3: Cross multiply
    219,781.89x = 303,299.03 × 119,179.89
  4. Step 4: Simplify right side
    219,781.89x = 36,147,145,330.46
  5. Step 5: Solve for x
    x = 36,147,145,330.46/219,781.89
  6. Step 6: Final answer
    x = 164,468.26

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1.5x scale

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.