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Finding the Fourth Proportional to 367.15, 548.56 and 354.39

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Solution

The fourth proportional to 367.15, 548.56 and 354.39 is: 529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.15 : 548.56 = 354.39 : x
  2. Step 2: Convert to fraction form
    367.15/548.56 = 354.39/x
  3. Step 3: Cross multiply
    367.15x = 548.56 × 354.39
  4. Step 4: Simplify right side
    367.15x = 194,404.18
  5. Step 5: Solve for x
    x = 194,404.18/367.15
  6. Step 6: Final answer
    x = 529.50

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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.