Home / 211,406.48-291,738.72-115,912.94

Finding the Fourth Proportional to 211,406.48, 291,738.72 and 115,912.94

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Solution

The fourth proportional to 211,406.48, 291,738.72 and 115,912.94 is: 159,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,406.48 : 291,738.72 = 115,912.94 : x
  2. Step 2: Convert to fraction form
    211,406.48/291,738.72 = 115,912.94/x
  3. Step 3: Cross multiply
    211,406.48x = 291,738.72 × 115,912.94
  4. Step 4: Simplify right side
    211,406.48x = 33,816,292,747.04
  5. Step 5: Solve for x
    x = 33,816,292,747.04/211,406.48
  6. Step 6: Final answer
    x = 159,958.64

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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.