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Finding the Fourth Proportional to 223,835.90, 335,790.30 and 66,080.30

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Solution

The fourth proportional to 223,835.90, 335,790.30 and 66,080.30 is: 99,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,835.90 : 335,790.30 = 66,080.30 : x
  2. Step 2: Convert to fraction form
    223,835.90/335,790.30 = 66,080.30/x
  3. Step 3: Cross multiply
    223,835.90x = 335,790.30 × 66,080.30
  4. Step 4: Simplify right side
    223,835.90x = 22,189,123,217.45
  5. Step 5: Solve for x
    x = 22,189,123,217.45/223,835.90
  6. Step 6: Final answer
    x = 99,131.21

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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.