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Finding the Fourth Proportional to 344.00, 474.70 and 196.60

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Solution

The fourth proportional to 344.00, 474.70 and 196.60 is: 271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.00 : 474.70 = 196.60 : x
  2. Step 2: Convert to fraction form
    344.00/474.70 = 196.60/x
  3. Step 3: Cross multiply
    344.00x = 474.70 × 196.60
  4. Step 4: Simplify right side
    344.00x = 93,326.02
  5. Step 5: Solve for x
    x = 93,326.02/344.00
  6. Step 6: Final answer
    x = 271.30

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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.