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Finding the Fourth Proportional to 271,477.60, 407,101.20 and 131,279.20

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Solution

The fourth proportional to 271,477.60, 407,101.20 and 131,279.20 is: 196,863.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,477.60 : 407,101.20 = 131,279.20 : x
  2. Step 2: Convert to fraction form
    271,477.60/407,101.20 = 131,279.20/x
  3. Step 3: Cross multiply
    271,477.60x = 407,101.20 × 131,279.20
  4. Step 4: Simplify right side
    271,477.60x = 53,443,919,855.04
  5. Step 5: Solve for x
    x = 53,443,919,855.04/271,477.60
  6. Step 6: Final answer
    x = 196,863.09

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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.