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Finding the Fourth Proportional to 289.04, 433.05 and 201.05

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Solution

The fourth proportional to 289.04, 433.05 and 201.05 is: 301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    289.04 : 433.05 = 201.05 : x
  2. Step 2: Convert to fraction form
    289.04/433.05 = 201.05/x
  3. Step 3: Cross multiply
    289.04x = 433.05 × 201.05
  4. Step 4: Simplify right side
    289.04x = 87,063.41
  5. Step 5: Solve for x
    x = 87,063.41/289.04
  6. Step 6: Final answer
    x = 301.22

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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.