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Finding the Fourth Proportional to 429.93, 593.31 and 243.39

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Solution

The fourth proportional to 429.93, 593.31 and 243.39 is: 335.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.93 : 593.31 = 243.39 : x
  2. Step 2: Convert to fraction form
    429.93/593.31 = 243.39/x
  3. Step 3: Cross multiply
    429.93x = 593.31 × 243.39
  4. Step 4: Simplify right side
    429.93x = 144,405.72
  5. Step 5: Solve for x
    x = 144,405.72/429.93
  6. Step 6: Final answer
    x = 335.88

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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.