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Finding the Fourth Proportional to 472.83, 708.30 and 225.66

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Solution

The fourth proportional to 472.83, 708.30 and 225.66 is: 338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.83 : 708.30 = 225.66 : x
  2. Step 2: Convert to fraction form
    472.83/708.30 = 225.66/x
  3. Step 3: Cross multiply
    472.83x = 708.30 × 225.66
  4. Step 4: Simplify right side
    472.83x = 159,834.98
  5. Step 5: Solve for x
    x = 159,834.98/472.83
  6. Step 6: Final answer
    x = 338.04

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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.