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Finding the Fourth Proportional to 374.54, 517.08 and 325.94

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Solution

The fourth proportional to 374.54, 517.08 and 325.94 is: 449.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.54 : 517.08 = 325.94 : x
  2. Step 2: Convert to fraction form
    374.54/517.08 = 325.94/x
  3. Step 3: Cross multiply
    374.54x = 517.08 × 325.94
  4. Step 4: Simplify right side
    374.54x = 168,537.06
  5. Step 5: Solve for x
    x = 168,537.06/374.54
  6. Step 6: Final answer
    x = 449.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.