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Finding the Fourth Proportional to 222.21, 332.69 and 153.26

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Solution

The fourth proportional to 222.21, 332.69 and 153.26 is: 229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.21 : 332.69 = 153.26 : x
  2. Step 2: Convert to fraction form
    222.21/332.69 = 153.26/x
  3. Step 3: Cross multiply
    222.21x = 332.69 × 153.26
  4. Step 4: Simplify right side
    222.21x = 50,985.64
  5. Step 5: Solve for x
    x = 50,985.64/222.21
  6. Step 6: Final answer
    x = 229.45

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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.