Home / 211,426.48-291,766.32-115,932.96

Finding the Fourth Proportional to 211,426.48, 291,766.32 and 115,932.96

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Solution

The fourth proportional to 211,426.48, 291,766.32 and 115,932.96 is: 159,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,426.48 : 291,766.32 = 115,932.96 : x
  2. Step 2: Convert to fraction form
    211,426.48/291,766.32 = 115,932.96/x
  3. Step 3: Cross multiply
    211,426.48x = 291,766.32 × 115,932.96
  4. Step 4: Simplify right side
    211,426.48x = 33,825,333,105.91
  5. Step 5: Solve for x
    x = 33,825,333,105.91/211,426.48
  6. Step 6: Final answer
    x = 159,986.27

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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.