Home / 271,813.43-407,688.47-72,149.33

Finding the Fourth Proportional to 271,813.43, 407,688.47 and 72,149.33

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Solution

The fourth proportional to 271,813.43, 407,688.47 and 72,149.33 is: 108,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,813.43 : 407,688.47 = 72,149.33 : x
  2. Step 2: Convert to fraction form
    271,813.43/407,688.47 = 72,149.33/x
  3. Step 3: Cross multiply
    271,813.43x = 407,688.47 × 72,149.33
  4. Step 4: Simplify right side
    271,813.43x = 29,414,450,888.26
  5. Step 5: Solve for x
    x = 29,414,450,888.26/271,813.43
  6. Step 6: Final answer
    x = 108,215.59

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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.