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Finding the Fourth Proportional to 395.64, 592.79 and 308.94

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Solution

The fourth proportional to 395.64, 592.79 and 308.94 is: 462.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.64 : 592.79 = 308.94 : x
  2. Step 2: Convert to fraction form
    395.64/592.79 = 308.94/x
  3. Step 3: Cross multiply
    395.64x = 592.79 × 308.94
  4. Step 4: Simplify right side
    395.64x = 183,135.00
  5. Step 5: Solve for x
    x = 183,135.00/395.64
  6. Step 6: Final answer
    x = 462.88

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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.