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Finding the Fourth Proportional to 440.24, 657.72 and 367.34

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Solution

The fourth proportional to 440.24, 657.72 and 367.34 is: 548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.24 : 657.72 = 367.34 : x
  2. Step 2: Convert to fraction form
    440.24/657.72 = 367.34/x
  3. Step 3: Cross multiply
    440.24x = 657.72 × 367.34
  4. Step 4: Simplify right side
    440.24x = 241,603.58
  5. Step 5: Solve for x
    x = 241,603.58/440.24
  6. Step 6: Final answer
    x = 548.81

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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.