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Finding the Fourth Proportional to 395.30, 594.09 and 265.74

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Solution

The fourth proportional to 395.30, 594.09 and 265.74 is: 399.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.30 : 594.09 = 265.74 : x
  2. Step 2: Convert to fraction form
    395.30/594.09 = 265.74/x
  3. Step 3: Cross multiply
    395.30x = 594.09 × 265.74
  4. Step 4: Simplify right side
    395.30x = 157,873.48
  5. Step 5: Solve for x
    x = 157,873.48/395.30
  6. Step 6: Final answer
    x = 399.38

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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.