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Finding the Fourth Proportional to 328.07, 452.34 and 197.03

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Solution

The fourth proportional to 328.07, 452.34 and 197.03 is: 271.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.07 : 452.34 = 197.03 : x
  2. Step 2: Convert to fraction form
    328.07/452.34 = 197.03/x
  3. Step 3: Cross multiply
    328.07x = 452.34 × 197.03
  4. Step 4: Simplify right side
    328.07x = 89,122.29
  5. Step 5: Solve for x
    x = 89,122.29/328.07
  6. Step 6: Final answer
    x = 271.66

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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.