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Finding the Fourth Proportional to 131.53, 197.16 and 50.34

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Solution

The fourth proportional to 131.53, 197.16 and 50.34 is: 75.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.53 : 197.16 = 50.34 : x
  2. Step 2: Convert to fraction form
    131.53/197.16 = 50.34/x
  3. Step 3: Cross multiply
    131.53x = 197.16 × 50.34
  4. Step 4: Simplify right side
    131.53x = 9,925.03
  5. Step 5: Solve for x
    x = 9,925.03/131.53
  6. Step 6: Final answer
    x = 75.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.