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Finding the Fourth Proportional to 488.06, 730.83 and 271.34

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Solution

The fourth proportional to 488.06, 730.83 and 271.34 is: 406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.06 : 730.83 = 271.34 : x
  2. Step 2: Convert to fraction form
    488.06/730.83 = 271.34/x
  3. Step 3: Cross multiply
    488.06x = 730.83 × 271.34
  4. Step 4: Simplify right side
    488.06x = 198,303.41
  5. Step 5: Solve for x
    x = 198,303.41/488.06
  6. Step 6: Final answer
    x = 406.31

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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.