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Finding the Fourth Proportional to 346.35, 517.62 and 326.37

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Solution

The fourth proportional to 346.35, 517.62 and 326.37 is: 487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.35 : 517.62 = 326.37 : x
  2. Step 2: Convert to fraction form
    346.35/517.62 = 326.37/x
  3. Step 3: Cross multiply
    346.35x = 517.62 × 326.37
  4. Step 4: Simplify right side
    346.35x = 168,935.64
  5. Step 5: Solve for x
    x = 168,935.64/346.35
  6. Step 6: Final answer
    x = 487.76

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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.