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Finding the Fourth Proportional to 346.08, 516.03 and 331.68

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Solution

The fourth proportional to 346.08, 516.03 and 331.68 is: 494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.08 : 516.03 = 331.68 : x
  2. Step 2: Convert to fraction form
    346.08/516.03 = 331.68/x
  3. Step 3: Cross multiply
    346.08x = 516.03 × 331.68
  4. Step 4: Simplify right side
    346.08x = 171,156.83
  5. Step 5: Solve for x
    x = 171,156.83/346.08
  6. Step 6: Final answer
    x = 494.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.