Home / 331,324.47-457,215.22-202,478.43

Finding the Fourth Proportional to 331,324.47, 457,215.22 and 202,478.43

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Solution

The fourth proportional to 331,324.47, 457,215.22 and 202,478.43 is: 279,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,324.47 : 457,215.22 = 202,478.43 : x
  2. Step 2: Convert to fraction form
    331,324.47/457,215.22 = 202,478.43/x
  3. Step 3: Cross multiply
    331,324.47x = 457,215.22 × 202,478.43
  4. Step 4: Simplify right side
    331,324.47x = 92,576,218,905.31
  5. Step 5: Solve for x
    x = 92,576,218,905.31/331,324.47
  6. Step 6: Final answer
    x = 279,412.56

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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.