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Finding the Fourth Proportional to 444.56, 613.80 and 289.52

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Solution

The fourth proportional to 444.56, 613.80 and 289.52 is: 399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.56 : 613.80 = 289.52 : x
  2. Step 2: Convert to fraction form
    444.56/613.80 = 289.52/x
  3. Step 3: Cross multiply
    444.56x = 613.80 × 289.52
  4. Step 4: Simplify right side
    444.56x = 177,707.38
  5. Step 5: Solve for x
    x = 177,707.38/444.56
  6. Step 6: Final answer
    x = 399.74

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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.