Home / 331,411.68-457,202.64-223,942.56

Finding the Fourth Proportional to 331,411.68, 457,202.64 and 223,942.56

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Solution

The fourth proportional to 331,411.68, 457,202.64 and 223,942.56 is: 308,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,411.68 : 457,202.64 = 223,942.56 : x
  2. Step 2: Convert to fraction form
    331,411.68/457,202.64 = 223,942.56/x
  3. Step 3: Cross multiply
    331,411.68x = 457,202.64 × 223,942.56
  4. Step 4: Simplify right side
    331,411.68x = 102,387,129,640.36
  5. Step 5: Solve for x
    x = 102,387,129,640.36/331,411.68
  6. Step 6: Final answer
    x = 308,942.43

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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.