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Finding the Fourth Proportional to 429.00, 591.98 and 239.96

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Solution

The fourth proportional to 429.00, 591.98 and 239.96 is: 331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.00 : 591.98 = 239.96 : x
  2. Step 2: Convert to fraction form
    429.00/591.98 = 239.96/x
  3. Step 3: Cross multiply
    429.00x = 591.98 × 239.96
  4. Step 4: Simplify right side
    429.00x = 142,048.47
  5. Step 5: Solve for x
    x = 142,048.47/429.00
  6. Step 6: Final answer
    x = 331.11

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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.