Home / 240,020.43-331,214.50-143,333.43

Finding the Fourth Proportional to 240,020.43, 331,214.50 and 143,333.43

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Solution

The fourth proportional to 240,020.43, 331,214.50 and 143,333.43 is: 197,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,020.43 : 331,214.50 = 143,333.43 : x
  2. Step 2: Convert to fraction form
    240,020.43/331,214.50 = 143,333.43/x
  3. Step 3: Cross multiply
    240,020.43x = 331,214.50 × 143,333.43
  4. Step 4: Simplify right side
    240,020.43x = 47,474,110,350.74
  5. Step 5: Solve for x
    x = 47,474,110,350.74/240,020.43
  6. Step 6: Final answer
    x = 197,791.96

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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.