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Finding the Fourth Proportional to 483.16, 662.42 and 474.40

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Solution

The fourth proportional to 483.16, 662.42 and 474.40 is: 650.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.16 : 662.42 = 474.40 : x
  2. Step 2: Convert to fraction form
    483.16/662.42 = 474.40/x
  3. Step 3: Cross multiply
    483.16x = 662.42 × 474.40
  4. Step 4: Simplify right side
    483.16x = 314,252.05
  5. Step 5: Solve for x
    x = 314,252.05/483.16
  6. Step 6: Final answer
    x = 650.41

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.