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Finding the Fourth Proportional to 245.52, 365.62 and 239.86

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Solution

The fourth proportional to 245.52, 365.62 and 239.86 is: 357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.52 : 365.62 = 239.86 : x
  2. Step 2: Convert to fraction form
    245.52/365.62 = 239.86/x
  3. Step 3: Cross multiply
    245.52x = 365.62 × 239.86
  4. Step 4: Simplify right side
    245.52x = 87,697.61
  5. Step 5: Solve for x
    x = 87,697.61/245.52
  6. Step 6: Final answer
    x = 357.19

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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.