Home / 211,009.62-291,198.40-115,516.02

Finding the Fourth Proportional to 211,009.62, 291,198.40 and 115,516.02

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Solution

The fourth proportional to 211,009.62, 291,198.40 and 115,516.02 is: 159,414.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,009.62 : 291,198.40 = 115,516.02 : x
  2. Step 2: Convert to fraction form
    211,009.62/291,198.40 = 115,516.02/x
  3. Step 3: Cross multiply
    211,009.62x = 291,198.40 × 115,516.02
  4. Step 4: Simplify right side
    211,009.62x = 33,638,080,198.37
  5. Step 5: Solve for x
    x = 33,638,080,198.37/211,009.62
  6. Step 6: Final answer
    x = 159,414.91

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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.