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Finding the Fourth Proportional to 444.39, 665.19 and 306.63

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Solution

The fourth proportional to 444.39, 665.19 and 306.63 is: 458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.39 : 665.19 = 306.63 : x
  2. Step 2: Convert to fraction form
    444.39/665.19 = 306.63/x
  3. Step 3: Cross multiply
    444.39x = 665.19 × 306.63
  4. Step 4: Simplify right side
    444.39x = 203,967.21
  5. Step 5: Solve for x
    x = 203,967.21/444.39
  6. Step 6: Final answer
    x = 458.98

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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.