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Finding the Fourth Proportional to 471.74, 707.86 and 179.44

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Solution

The fourth proportional to 471.74, 707.86 and 179.44 is: 269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.74 : 707.86 = 179.44 : x
  2. Step 2: Convert to fraction form
    471.74/707.86 = 179.44/x
  3. Step 3: Cross multiply
    471.74x = 707.86 × 179.44
  4. Step 4: Simplify right side
    471.74x = 127,018.40
  5. Step 5: Solve for x
    x = 127,018.40/471.74
  6. Step 6: Final answer
    x = 269.26

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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.