Home / 271,640.43-407,538.41-131,478.03

Finding the Fourth Proportional to 271,640.43, 407,538.41 and 131,478.03

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Solution

The fourth proportional to 271,640.43, 407,538.41 and 131,478.03 is: 197,254.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,640.43 : 407,538.41 = 131,478.03 : x
  2. Step 2: Convert to fraction form
    271,640.43/407,538.41 = 131,478.03/x
  3. Step 3: Cross multiply
    271,640.43x = 407,538.41 × 131,478.03
  4. Step 4: Simplify right side
    271,640.43x = 53,582,346,638.74
  5. Step 5: Solve for x
    x = 53,582,346,638.74/271,640.43
  6. Step 6: Final answer
    x = 197,254.68

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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.