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Finding the Fourth Proportional to 217,996.40, 327,203.40 and 112,890.80

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Solution

The fourth proportional to 217,996.40, 327,203.40 and 112,890.80 is: 169,444.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,996.40 : 327,203.40 = 112,890.80 : x
  2. Step 2: Convert to fraction form
    217,996.40/327,203.40 = 112,890.80/x
  3. Step 3: Cross multiply
    217,996.40x = 327,203.40 × 112,890.80
  4. Step 4: Simplify right side
    217,996.40x = 36,938,253,588.72
  5. Step 5: Solve for x
    x = 36,938,253,588.72/217,996.40
  6. Step 6: Final answer
    x = 169,444.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.