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Finding the Fourth Proportional to 433.33, 650.54 and 288.61

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Solution

The fourth proportional to 433.33, 650.54 and 288.61 is: 433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.33 : 650.54 = 288.61 : x
  2. Step 2: Convert to fraction form
    433.33/650.54 = 288.61/x
  3. Step 3: Cross multiply
    433.33x = 650.54 × 288.61
  4. Step 4: Simplify right side
    433.33x = 187,750.91
  5. Step 5: Solve for x
    x = 187,750.91/433.33
  6. Step 6: Final answer
    x = 433.27

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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.