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Finding the Fourth Proportional to 369.02, 553.04 and 282.03

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Solution

The fourth proportional to 369.02, 553.04 and 282.03 is: 422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.02 : 553.04 = 282.03 : x
  2. Step 2: Convert to fraction form
    369.02/553.04 = 282.03/x
  3. Step 3: Cross multiply
    369.02x = 553.04 × 282.03
  4. Step 4: Simplify right side
    369.02x = 155,972.46
  5. Step 5: Solve for x
    x = 155,972.46/369.02
  6. Step 6: Final answer
    x = 422.67

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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.