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Finding the Fourth Proportional to 353.46, 483.44 and 347.79

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Solution

The fourth proportional to 353.46, 483.44 and 347.79 is: 475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.46 : 483.44 = 347.79 : x
  2. Step 2: Convert to fraction form
    353.46/483.44 = 347.79/x
  3. Step 3: Cross multiply
    353.46x = 483.44 × 347.79
  4. Step 4: Simplify right side
    353.46x = 168,133.86
  5. Step 5: Solve for x
    x = 168,133.86/353.46
  6. Step 6: Final answer
    x = 475.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.