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Finding the Fourth Proportional to 302,564.40, 453,846.60 and 279,754.80

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Solution

The fourth proportional to 302,564.40, 453,846.60 and 279,754.80 is: 419,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,564.40 : 453,846.60 = 279,754.80 : x
  2. Step 2: Convert to fraction form
    302,564.40/453,846.60 = 279,754.80/x
  3. Step 3: Cross multiply
    302,564.40x = 453,846.60 × 279,754.80
  4. Step 4: Simplify right side
    302,564.40x = 126,965,764,813.68
  5. Step 5: Solve for x
    x = 126,965,764,813.68/302,564.40
  6. Step 6: Final answer
    x = 419,632.20

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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.