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Finding the Fourth Proportional to 344.61, 475.53 and 197.22

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Solution

The fourth proportional to 344.61, 475.53 and 197.22 is: 272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.61 : 475.53 = 197.22 : x
  2. Step 2: Convert to fraction form
    344.61/475.53 = 197.22/x
  3. Step 3: Cross multiply
    344.61x = 475.53 × 197.22
  4. Step 4: Simplify right side
    344.61x = 93,784.03
  5. Step 5: Solve for x
    x = 93,784.03/344.61
  6. Step 6: Final answer
    x = 272.15

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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.