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Finding the Fourth Proportional to 429.59, 592.79 and 243.06

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Solution

The fourth proportional to 429.59, 592.79 and 243.06 is: 335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.59 : 592.79 = 243.06 : x
  2. Step 2: Convert to fraction form
    429.59/592.79 = 243.06/x
  3. Step 3: Cross multiply
    429.59x = 592.79 × 243.06
  4. Step 4: Simplify right side
    429.59x = 144,083.54
  5. Step 5: Solve for x
    x = 144,083.54/429.59
  6. Step 6: Final answer
    x = 335.40

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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.