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Finding the Fourth Proportional to 271,491.10, 407,121.45 and 131,292.70

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Solution

The fourth proportional to 271,491.10, 407,121.45 and 131,292.70 is: 196,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,491.10 : 407,121.45 = 131,292.70 : x
  2. Step 2: Convert to fraction form
    271,491.10/407,121.45 = 131,292.70/x
  3. Step 3: Cross multiply
    271,491.10x = 407,121.45 × 131,292.70
  4. Step 4: Simplify right side
    271,491.10x = 53,452,074,398.42
  5. Step 5: Solve for x
    x = 53,452,074,398.42/271,491.10
  6. Step 6: Final answer
    x = 196,883.34

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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.