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Finding the Fourth Proportional to 444.39, 613.23 and 278.59

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Solution

The fourth proportional to 444.39, 613.23 and 278.59 is: 384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.39 : 613.23 = 278.59 : x
  2. Step 2: Convert to fraction form
    444.39/613.23 = 278.59/x
  3. Step 3: Cross multiply
    444.39x = 613.23 × 278.59
  4. Step 4: Simplify right side
    444.39x = 170,839.75
  5. Step 5: Solve for x
    x = 170,839.75/444.39
  6. Step 6: Final answer
    x = 384.44

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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.