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Finding the Fourth Proportional to 223,768.80, 335,654.04 and 90,651.60

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Solution

The fourth proportional to 223,768.80, 335,654.04 and 90,651.60 is: 135,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,768.80 : 335,654.04 = 90,651.60 : x
  2. Step 2: Convert to fraction form
    223,768.80/335,654.04 = 90,651.60/x
  3. Step 3: Cross multiply
    223,768.80x = 335,654.04 × 90,651.60
  4. Step 4: Simplify right side
    223,768.80x = 30,427,575,772.46
  5. Step 5: Solve for x
    x = 30,427,575,772.46/223,768.80
  6. Step 6: Final answer
    x = 135,977.74

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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.