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Finding the Fourth Proportional to 346.17, 475.53 and 328.62

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Solution

The fourth proportional to 346.17, 475.53 and 328.62 is: 451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.17 : 475.53 = 328.62 : x
  2. Step 2: Convert to fraction form
    346.17/475.53 = 328.62/x
  3. Step 3: Cross multiply
    346.17x = 475.53 × 328.62
  4. Step 4: Simplify right side
    346.17x = 156,268.67
  5. Step 5: Solve for x
    x = 156,268.67/346.17
  6. Step 6: Final answer
    x = 451.42

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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.