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Finding the Fourth Proportional to 472.69, 708.57 and 335.39

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Solution

The fourth proportional to 472.69, 708.57 and 335.39 is: 502.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.69 : 708.57 = 335.39 : x
  2. Step 2: Convert to fraction form
    472.69/708.57 = 335.39/x
  3. Step 3: Cross multiply
    472.69x = 708.57 × 335.39
  4. Step 4: Simplify right side
    472.69x = 237,648.68
  5. Step 5: Solve for x
    x = 237,648.68/472.69
  6. Step 6: Final answer
    x = 502.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.