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Finding the Fourth Proportional to 480.93, 668.16 and 475.17

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Solution

The fourth proportional to 480.93, 668.16 and 475.17 is: 660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.93 : 668.16 = 475.17 : x
  2. Step 2: Convert to fraction form
    480.93/668.16 = 475.17/x
  3. Step 3: Cross multiply
    480.93x = 668.16 × 475.17
  4. Step 4: Simplify right side
    480.93x = 317,489.59
  5. Step 5: Solve for x
    x = 317,489.59/480.93
  6. Step 6: Final answer
    x = 660.16

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.