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Finding the Fourth Proportional to 397.03, 548.02 and 266.08

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Solution

The fourth proportional to 397.03, 548.02 and 266.08 is: 367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.03 : 548.02 = 266.08 : x
  2. Step 2: Convert to fraction form
    397.03/548.02 = 266.08/x
  3. Step 3: Cross multiply
    397.03x = 548.02 × 266.08
  4. Step 4: Simplify right side
    397.03x = 145,817.16
  5. Step 5: Solve for x
    x = 145,817.16/397.03
  6. Step 6: Final answer
    x = 367.27

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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.