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Finding the Fourth Proportional to 154.05, 212.60 and 95.02

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Solution

The fourth proportional to 154.05, 212.60 and 95.02 is: 131.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.05 : 212.60 = 95.02 : x
  2. Step 2: Convert to fraction form
    154.05/212.60 = 95.02/x
  3. Step 3: Cross multiply
    154.05x = 212.60 × 95.02
  4. Step 4: Simplify right side
    154.05x = 20,202.02
  5. Step 5: Solve for x
    x = 20,202.02/154.05
  6. Step 6: Final answer
    x = 131.14

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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.