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Finding the Fourth Proportional to 429.66, 592.91 and 243.17

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Solution

The fourth proportional to 429.66, 592.91 and 243.17 is: 335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.66 : 592.91 = 243.17 : x
  2. Step 2: Convert to fraction form
    429.66/592.91 = 243.17/x
  3. Step 3: Cross multiply
    429.66x = 592.91 × 243.17
  4. Step 4: Simplify right side
    429.66x = 144,178.28
  5. Step 5: Solve for x
    x = 144,178.28/429.66
  6. Step 6: Final answer
    x = 335.56

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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.