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Finding the Fourth Proportional to 348.00, 480.28 and 216.94

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Solution

The fourth proportional to 348.00, 480.28 and 216.94 is: 299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.00 : 480.28 = 216.94 : x
  2. Step 2: Convert to fraction form
    348.00/480.28 = 216.94/x
  3. Step 3: Cross multiply
    348.00x = 480.28 × 216.94
  4. Step 4: Simplify right side
    348.00x = 104,189.54
  5. Step 5: Solve for x
    x = 104,189.54/348.00
  6. Step 6: Final answer
    x = 299.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.