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Finding the Fourth Proportional to 444.52, 613.86 and 289.48

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Solution

The fourth proportional to 444.52, 613.86 and 289.48 is: 399.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.52 : 613.86 = 289.48 : x
  2. Step 2: Convert to fraction form
    444.52/613.86 = 289.48/x
  3. Step 3: Cross multiply
    444.52x = 613.86 × 289.48
  4. Step 4: Simplify right side
    444.52x = 177,700.19
  5. Step 5: Solve for x
    x = 177,700.19/444.52
  6. Step 6: Final answer
    x = 399.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.