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Finding the Fourth Proportional to 472.00, 708.17 and 147.37

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Solution

The fourth proportional to 472.00, 708.17 and 147.37 is: 221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.00 : 708.17 = 147.37 : x
  2. Step 2: Convert to fraction form
    472.00/708.17 = 147.37/x
  3. Step 3: Cross multiply
    472.00x = 708.17 × 147.37
  4. Step 4: Simplify right side
    472.00x = 104,360.24
  5. Step 5: Solve for x
    x = 104,360.24/472.00
  6. Step 6: Final answer
    x = 221.10

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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.