Home / 211,291.14-291,580.10-115,797.61

Finding the Fourth Proportional to 211,291.14, 291,580.10 and 115,797.61

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Solution

The fourth proportional to 211,291.14, 291,580.10 and 115,797.61 is: 159,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,291.14 : 291,580.10 = 115,797.61 : x
  2. Step 2: Convert to fraction form
    211,291.14/291,580.10 = 115,797.61/x
  3. Step 3: Cross multiply
    211,291.14x = 291,580.10 × 115,797.61
  4. Step 4: Simplify right side
    211,291.14x = 33,764,278,923.29
  5. Step 5: Solve for x
    x = 33,764,278,923.29/211,291.14
  6. Step 6: Final answer
    x = 159,799.78

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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.