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Finding the Fourth Proportional to 271,697.40, 407,546.10 and 131,470.20

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Solution

The fourth proportional to 271,697.40, 407,546.10 and 131,470.20 is: 197,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,697.40 : 407,546.10 = 131,470.20 : x
  2. Step 2: Convert to fraction form
    271,697.40/407,546.10 = 131,470.20/x
  3. Step 3: Cross multiply
    271,697.40x = 407,546.10 × 131,470.20
  4. Step 4: Simplify right side
    271,697.40x = 53,580,167,276.22
  5. Step 5: Solve for x
    x = 53,580,167,276.22/271,697.40
  6. Step 6: Final answer
    x = 197,205.30

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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.