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Finding the Fourth Proportional to 593.08, 818.16 and 396.64

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Solution

The fourth proportional to 593.08, 818.16 and 396.64 is: 547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.08 : 818.16 = 396.64 : x
  2. Step 2: Convert to fraction form
    593.08/818.16 = 396.64/x
  3. Step 3: Cross multiply
    593.08x = 818.16 × 396.64
  4. Step 4: Simplify right side
    593.08x = 324,514.98
  5. Step 5: Solve for x
    x = 324,514.98/593.08
  6. Step 6: Final answer
    x = 547.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.