Home / 271,949.28-407,332.40-131,412

Finding the Fourth Proportional to 271,949.28, 407,332.40 and 131,412

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Solution

The fourth proportional to 271,949.28, 407,332.40 and 131,412 is: 196,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,949.28 : 407,332.40 = 131,412 : x
  2. Step 2: Convert to fraction form
    271,949.28/407,332.40 = 131,412/x
  3. Step 3: Cross multiply
    271,949.28x = 407,332.40 × 131,412
  4. Step 4: Simplify right side
    271,949.28x = 53,528,365,348.80
  5. Step 5: Solve for x
    x = 53,528,365,348.80/271,949.28
  6. Step 6: Final answer
    x = 196,832.16

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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.