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Finding the Fourth Proportional to 472.72, 652.28 and 295.66

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Solution

The fourth proportional to 472.72, 652.28 and 295.66 is: 407.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.72 : 652.28 = 295.66 : x
  2. Step 2: Convert to fraction form
    472.72/652.28 = 295.66/x
  3. Step 3: Cross multiply
    472.72x = 652.28 × 295.66
  4. Step 4: Simplify right side
    472.72x = 192,850.00
  5. Step 5: Solve for x
    x = 192,850.00/472.72
  6. Step 6: Final answer
    x = 407.96

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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.