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Finding the Fourth Proportional to 352.72, 483.60 and 346.60

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Solution

The fourth proportional to 352.72, 483.60 and 346.60 is: 475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.72 : 483.60 = 346.60 : x
  2. Step 2: Convert to fraction form
    352.72/483.60 = 346.60/x
  3. Step 3: Cross multiply
    352.72x = 483.60 × 346.60
  4. Step 4: Simplify right side
    352.72x = 167,615.76
  5. Step 5: Solve for x
    x = 167,615.76/352.72
  6. Step 6: Final answer
    x = 475.21

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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.