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Finding the Fourth Proportional to 450.07, 621.38 and 367.37

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Solution

The fourth proportional to 450.07, 621.38 and 367.37 is: 507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.07 : 621.38 = 367.37 : x
  2. Step 2: Convert to fraction form
    450.07/621.38 = 367.37/x
  3. Step 3: Cross multiply
    450.07x = 621.38 × 367.37
  4. Step 4: Simplify right side
    450.07x = 228,277.92
  5. Step 5: Solve for x
    x = 228,277.92/450.07
  6. Step 6: Final answer
    x = 507.21

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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.