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Finding the Fourth Proportional to 352.79, 483.69 and 347.42

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Solution

The fourth proportional to 352.79, 483.69 and 347.42 is: 476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.79 : 483.69 = 347.42 : x
  2. Step 2: Convert to fraction form
    352.79/483.69 = 347.42/x
  3. Step 3: Cross multiply
    352.79x = 483.69 × 347.42
  4. Step 4: Simplify right side
    352.79x = 168,039.86
  5. Step 5: Solve for x
    x = 168,039.86/352.79
  6. Step 6: Final answer
    x = 476.31

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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.