Home / 271,814.22-407,689.64-72,150.12

Finding the Fourth Proportional to 271,814.22, 407,689.64 and 72,150.12

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Solution

The fourth proportional to 271,814.22, 407,689.64 and 72,150.12 is: 108,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,814.22 : 407,689.64 = 72,150.12 : x
  2. Step 2: Convert to fraction form
    271,814.22/407,689.64 = 72,150.12/x
  3. Step 3: Cross multiply
    271,814.22x = 407,689.64 × 72,150.12
  4. Step 4: Simplify right side
    271,814.22x = 29,414,854,410.31
  5. Step 5: Solve for x
    x = 29,414,854,410.31/271,814.22
  6. Step 6: Final answer
    x = 108,216.76

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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.