Home / 211,712.85-317,467.22-122,991.75

Finding the Fourth Proportional to 211,712.85, 317,467.22 and 122,991.75

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Solution

The fourth proportional to 211,712.85, 317,467.22 and 122,991.75 is: 184,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,712.85 : 317,467.22 = 122,991.75 : x
  2. Step 2: Convert to fraction form
    211,712.85/317,467.22 = 122,991.75/x
  3. Step 3: Cross multiply
    211,712.85x = 317,467.22 × 122,991.75
  4. Step 4: Simplify right side
    211,712.85x = 39,045,848,340.48
  5. Step 5: Solve for x
    x = 39,045,848,340.48/211,712.85
  6. Step 6: Final answer
    x = 184,428.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.