Home / 211,399.98-291,729.75-115,906.44

Finding the Fourth Proportional to 211,399.98, 291,729.75 and 115,906.44

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Solution

The fourth proportional to 211,399.98, 291,729.75 and 115,906.44 is: 159,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,399.98 : 291,729.75 = 115,906.44 : x
  2. Step 2: Convert to fraction form
    211,399.98/291,729.75 = 115,906.44/x
  3. Step 3: Cross multiply
    211,399.98x = 291,729.75 × 115,906.44
  4. Step 4: Simplify right side
    211,399.98x = 33,813,356,764.59
  5. Step 5: Solve for x
    x = 33,813,356,764.59/211,399.98
  6. Step 6: Final answer
    x = 159,949.67

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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.