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Finding the Fourth Proportional to 271,803.70, 407,770.35 and 131,446.90

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Solution

The fourth proportional to 271,803.70, 407,770.35 and 131,446.90 is: 197,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,803.70 : 407,770.35 = 131,446.90 : x
  2. Step 2: Convert to fraction form
    271,803.70/407,770.35 = 131,446.90/x
  3. Step 3: Cross multiply
    271,803.70x = 407,770.35 × 131,446.90
  4. Step 4: Simplify right side
    271,803.70x = 53,600,148,419.42
  5. Step 5: Solve for x
    x = 53,600,148,419.42/271,803.70
  6. Step 6: Final answer
    x = 197,201.69

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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.