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Finding the Fourth Proportional to 235.12, 350.30 and 223.50

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Solution

The fourth proportional to 235.12, 350.30 and 223.50 is: 332.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.12 : 350.30 = 223.50 : x
  2. Step 2: Convert to fraction form
    235.12/350.30 = 223.50/x
  3. Step 3: Cross multiply
    235.12x = 350.30 × 223.50
  4. Step 4: Simplify right side
    235.12x = 78,291.37
  5. Step 5: Solve for x
    x = 78,291.37/235.12
  6. Step 6: Final answer
    x = 332.99

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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.