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Finding the Fourth Proportional to 472.06, 707.58 and 163.82

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Solution

The fourth proportional to 472.06, 707.58 and 163.82 is: 245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.06 : 707.58 = 163.82 : x
  2. Step 2: Convert to fraction form
    472.06/707.58 = 163.82/x
  3. Step 3: Cross multiply
    472.06x = 707.58 × 163.82
  4. Step 4: Simplify right side
    472.06x = 115,915.76
  5. Step 5: Solve for x
    x = 115,915.76/472.06
  6. Step 6: Final answer
    x = 245.55

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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.