Home / 331,516.22-457,363.13-188,256.78

Finding the Fourth Proportional to 331,516.22, 457,363.13 and 188,256.78

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Solution

The fourth proportional to 331,516.22, 457,363.13 and 188,256.78 is: 259,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,516.22 : 457,363.13 = 188,256.78 : x
  2. Step 2: Convert to fraction form
    331,516.22/457,363.13 = 188,256.78/x
  3. Step 3: Cross multiply
    331,516.22x = 457,363.13 × 188,256.78
  4. Step 4: Simplify right side
    331,516.22x = 86,101,709,203.24
  5. Step 5: Solve for x
    x = 86,101,709,203.24/331,516.22
  6. Step 6: Final answer
    x = 259,720.96

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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.