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Finding the Fourth Proportional to 331,424.56, 457,220.37 and 223,955.38

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Solution

The fourth proportional to 331,424.56, 457,220.37 and 223,955.38 is: 308,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,424.56 : 457,220.37 = 223,955.38 : x
  2. Step 2: Convert to fraction form
    331,424.56/457,220.37 = 223,955.38/x
  3. Step 3: Cross multiply
    331,424.56x = 457,220.37 × 223,955.38
  4. Step 4: Simplify right side
    331,424.56x = 102,396,959,420.99
  5. Step 5: Solve for x
    x = 102,396,959,420.99/331,424.56
  6. Step 6: Final answer
    x = 308,960.09

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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.