Home / 211,231.25-291,499.14-115,741.37

Finding the Fourth Proportional to 211,231.25, 291,499.14 and 115,741.37

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Solution

The fourth proportional to 211,231.25, 291,499.14 and 115,741.37 is: 159,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,231.25 : 291,499.14 = 115,741.37 : x
  2. Step 2: Convert to fraction form
    211,231.25/291,499.14 = 115,741.37/x
  3. Step 3: Cross multiply
    211,231.25x = 291,499.14 × 115,741.37
  4. Step 4: Simplify right side
    211,231.25x = 33,738,509,817.42
  5. Step 5: Solve for x
    x = 33,738,509,817.42/211,231.25
  6. Step 6: Final answer
    x = 159,723.10

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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.