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Finding the Fourth Proportional to 480.94, 720.66 and 264.67

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Solution

The fourth proportional to 480.94, 720.66 and 264.67 is: 396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.94 : 720.66 = 264.67 : x
  2. Step 2: Convert to fraction form
    480.94/720.66 = 264.67/x
  3. Step 3: Cross multiply
    480.94x = 720.66 × 264.67
  4. Step 4: Simplify right side
    480.94x = 190,736.27
  5. Step 5: Solve for x
    x = 190,736.27/480.94
  6. Step 6: Final answer
    x = 396.59

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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.