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Finding the Fourth Proportional to 197.58, 294.50 and 187.32

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Solution

The fourth proportional to 197.58, 294.50 and 187.32 is: 279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.58 : 294.50 = 187.32 : x
  2. Step 2: Convert to fraction form
    197.58/294.50 = 187.32/x
  3. Step 3: Cross multiply
    197.58x = 294.50 × 187.32
  4. Step 4: Simplify right side
    197.58x = 55,165.74
  5. Step 5: Solve for x
    x = 55,165.74/197.58
  6. Step 6: Final answer
    x = 279.21

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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.