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Finding the Fourth Proportional to 282.33, 423.90 and 222.12

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Solution

The fourth proportional to 282.33, 423.90 and 222.12 is: 333.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.33 : 423.90 = 222.12 : x
  2. Step 2: Convert to fraction form
    282.33/423.90 = 222.12/x
  3. Step 3: Cross multiply
    282.33x = 423.90 × 222.12
  4. Step 4: Simplify right side
    282.33x = 94,156.67
  5. Step 5: Solve for x
    x = 94,156.67/282.33
  6. Step 6: Final answer
    x = 333.50

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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.