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Finding the Fourth Proportional to 271,499.60, 407,287.80 and 84,491.60

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Solution

The fourth proportional to 271,499.60, 407,287.80 and 84,491.60 is: 126,749.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,499.60 : 407,287.80 = 84,491.60 : x
  2. Step 2: Convert to fraction form
    271,499.60/407,287.80 = 84,491.60/x
  3. Step 3: Cross multiply
    271,499.60x = 407,287.80 × 84,491.60
  4. Step 4: Simplify right side
    271,499.60x = 34,412,397,882.48
  5. Step 5: Solve for x
    x = 34,412,397,882.48/271,499.60
  6. Step 6: Final answer
    x = 126,749.35

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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.