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Finding the Fourth Proportional to 444.40, 668.12 and 395.76

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Solution

The fourth proportional to 444.40, 668.12 and 395.76 is: 594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.40 : 668.12 = 395.76 : x
  2. Step 2: Convert to fraction form
    444.40/668.12 = 395.76/x
  3. Step 3: Cross multiply
    444.40x = 668.12 × 395.76
  4. Step 4: Simplify right side
    444.40x = 264,415.17
  5. Step 5: Solve for x
    x = 264,415.17/444.40
  6. Step 6: Final answer
    x = 594.99

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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.