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Finding the Fourth Proportional to 472.77, 708.62 and 356.85

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Solution

The fourth proportional to 472.77, 708.62 and 356.85 is: 534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.77 : 708.62 = 356.85 : x
  2. Step 2: Convert to fraction form
    472.77/708.62 = 356.85/x
  3. Step 3: Cross multiply
    472.77x = 708.62 × 356.85
  4. Step 4: Simplify right side
    472.77x = 252,869.26
  5. Step 5: Solve for x
    x = 252,869.26/472.77
  6. Step 6: Final answer
    x = 534.87

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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.