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Finding the Fourth Proportional to 593.38, 818.86 and 331.40

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Solution

The fourth proportional to 593.38, 818.86 and 331.40 is: 457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.38 : 818.86 = 331.40 : x
  2. Step 2: Convert to fraction form
    593.38/818.86 = 331.40/x
  3. Step 3: Cross multiply
    593.38x = 818.86 × 331.40
  4. Step 4: Simplify right side
    593.38x = 271,370.20
  5. Step 5: Solve for x
    x = 271,370.20/593.38
  6. Step 6: Final answer
    x = 457.33

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.