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Finding the Fourth Proportional to 245.07, 367.61 and 96.81

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Solution

The fourth proportional to 245.07, 367.61 and 96.81 is: 145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.07 : 367.61 = 96.81 : x
  2. Step 2: Convert to fraction form
    245.07/367.61 = 96.81/x
  3. Step 3: Cross multiply
    245.07x = 367.61 × 96.81
  4. Step 4: Simplify right side
    245.07x = 35,588.76
  5. Step 5: Solve for x
    x = 35,588.76/245.07
  6. Step 6: Final answer
    x = 145.22

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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.