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Finding the Fourth Proportional to 399.15, 595.28 and 360.27

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Solution

The fourth proportional to 399.15, 595.28 and 360.27 is: 537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.15 : 595.28 = 360.27 : x
  2. Step 2: Convert to fraction form
    399.15/595.28 = 360.27/x
  3. Step 3: Cross multiply
    399.15x = 595.28 × 360.27
  4. Step 4: Simplify right side
    399.15x = 214,462.43
  5. Step 5: Solve for x
    x = 214,462.43/399.15
  6. Step 6: Final answer
    x = 537.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.