Home / 211,180.33-291,428.94-115,687.39

Finding the Fourth Proportional to 211,180.33, 291,428.94 and 115,687.39

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Solution

The fourth proportional to 211,180.33, 291,428.94 and 115,687.39 is: 159,648.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,180.33 : 291,428.94 = 115,687.39 : x
  2. Step 2: Convert to fraction form
    211,180.33/291,428.94 = 115,687.39/x
  3. Step 3: Cross multiply
    211,180.33x = 291,428.94 × 115,687.39
  4. Step 4: Simplify right side
    211,180.33x = 33,714,653,439.07
  5. Step 5: Solve for x
    x = 33,714,653,439.07/211,180.33
  6. Step 6: Final answer
    x = 159,648.64

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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.