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Finding the Fourth Proportional to 480.16, 720.24 and 252.32

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Solution

The fourth proportional to 480.16, 720.24 and 252.32 is: 378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.16 : 720.24 = 252.32 : x
  2. Step 2: Convert to fraction form
    480.16/720.24 = 252.32/x
  3. Step 3: Cross multiply
    480.16x = 720.24 × 252.32
  4. Step 4: Simplify right side
    480.16x = 181,730.96
  5. Step 5: Solve for x
    x = 181,730.96/480.16
  6. Step 6: Final answer
    x = 378.48

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Similar ratio
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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.