Home / 211,227.21-291,489.03-115,731.86

Finding the Fourth Proportional to 211,227.21, 291,489.03 and 115,731.86

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Solution

The fourth proportional to 211,227.21, 291,489.03 and 115,731.86 is: 159,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,227.21 : 291,489.03 = 115,731.86 : x
  2. Step 2: Convert to fraction form
    211,227.21/291,489.03 = 115,731.86/x
  3. Step 3: Cross multiply
    211,227.21x = 291,489.03 × 115,731.86
  4. Step 4: Simplify right side
    211,227.21x = 33,734,566,154.05
  5. Step 5: Solve for x
    x = 33,734,566,154.05/211,227.21
  6. Step 6: Final answer
    x = 159,707.48

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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.