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Finding the Fourth Proportional to 240.36, 360.60 and 130.68

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Solution

The fourth proportional to 240.36, 360.60 and 130.68 is: 196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.36 : 360.60 = 130.68 : x
  2. Step 2: Convert to fraction form
    240.36/360.60 = 130.68/x
  3. Step 3: Cross multiply
    240.36x = 360.60 × 130.68
  4. Step 4: Simplify right side
    240.36x = 47,123.21
  5. Step 5: Solve for x
    x = 47,123.21/240.36
  6. Step 6: Final answer
    x = 196.05

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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.