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Finding the Fourth Proportional to 271,805.20, 407,772.60 and 131,448.40

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Solution

The fourth proportional to 271,805.20, 407,772.60 and 131,448.40 is: 197,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,805.20 : 407,772.60 = 131,448.40 : x
  2. Step 2: Convert to fraction form
    271,805.20/407,772.60 = 131,448.40/x
  3. Step 3: Cross multiply
    271,805.20x = 407,772.60 × 131,448.40
  4. Step 4: Simplify right side
    271,805.20x = 53,601,055,833.84
  5. Step 5: Solve for x
    x = 53,601,055,833.84/271,805.20
  6. Step 6: Final answer
    x = 197,203.94

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1.5x scale

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.