Home / 211,489.22-317,253.91-76,587.37

Finding the Fourth Proportional to 211,489.22, 317,253.91 and 76,587.37

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Solution

The fourth proportional to 211,489.22, 317,253.91 and 76,587.37 is: 114,888.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,489.22 : 317,253.91 = 76,587.37 : x
  2. Step 2: Convert to fraction form
    211,489.22/317,253.91 = 76,587.37/x
  3. Step 3: Cross multiply
    211,489.22x = 317,253.91 × 76,587.37
  4. Step 4: Simplify right side
    211,489.22x = 24,297,642,589.12
  5. Step 5: Solve for x
    x = 24,297,642,589.12/211,489.22
  6. Step 6: Final answer
    x = 114,888.33

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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.