Home / 211,179.88-291,428.58-115,684.48

Finding the Fourth Proportional to 211,179.88, 291,428.58 and 115,684.48

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Solution

The fourth proportional to 211,179.88, 291,428.58 and 115,684.48 is: 159,644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,179.88 : 291,428.58 = 115,684.48 : x
  2. Step 2: Convert to fraction form
    211,179.88/291,428.58 = 115,684.48/x
  3. Step 3: Cross multiply
    211,179.88x = 291,428.58 × 115,684.48
  4. Step 4: Simplify right side
    211,179.88x = 33,713,763,734.44
  5. Step 5: Solve for x
    x = 33,713,763,734.44/211,179.88
  6. Step 6: Final answer
    x = 159,644.77

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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.