Home / 211,403.28-291,733.92-115,910.04

Finding the Fourth Proportional to 211,403.28, 291,733.92 and 115,910.04

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Solution

The fourth proportional to 211,403.28, 291,733.92 and 115,910.04 is: 159,954.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,403.28 : 291,733.92 = 115,910.04 : x
  2. Step 2: Convert to fraction form
    211,403.28/291,733.92 = 115,910.04/x
  3. Step 3: Cross multiply
    211,403.28x = 291,733.92 × 115,910.04
  4. Step 4: Simplify right side
    211,403.28x = 33,814,890,336.56
  5. Step 5: Solve for x
    x = 33,814,890,336.56/211,403.28
  6. Step 6: Final answer
    x = 159,954.43

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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.