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Finding the Fourth Proportional to 441.30, 608.87 and 347.76

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Solution

The fourth proportional to 441.30, 608.87 and 347.76 is: 479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.30 : 608.87 = 347.76 : x
  2. Step 2: Convert to fraction form
    441.30/608.87 = 347.76/x
  3. Step 3: Cross multiply
    441.30x = 608.87 × 347.76
  4. Step 4: Simplify right side
    441.30x = 211,739.98
  5. Step 5: Solve for x
    x = 211,739.98/441.30
  6. Step 6: Final answer
    x = 479.81

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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.