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Finding the Fourth Proportional to 614.02, 920.31 and 367.42

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Solution

The fourth proportional to 614.02, 920.31 and 367.42 is: 550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.02 : 920.31 = 367.42 : x
  2. Step 2: Convert to fraction form
    614.02/920.31 = 367.42/x
  3. Step 3: Cross multiply
    614.02x = 920.31 × 367.42
  4. Step 4: Simplify right side
    614.02x = 338,140.30
  5. Step 5: Solve for x
    x = 338,140.30/614.02
  6. Step 6: Final answer
    x = 550.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.