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Finding the Fourth Proportional to 429.96, 593.91 and 329.76

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Solution

The fourth proportional to 429.96, 593.91 and 329.76 is: 455.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.96 : 593.91 = 329.76 : x
  2. Step 2: Convert to fraction form
    429.96/593.91 = 329.76/x
  3. Step 3: Cross multiply
    429.96x = 593.91 × 329.76
  4. Step 4: Simplify right side
    429.96x = 195,847.76
  5. Step 5: Solve for x
    x = 195,847.76/429.96
  6. Step 6: Final answer
    x = 455.50

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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.