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Finding the Fourth Proportional to 483.26, 666.38 and 358.71

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Solution

The fourth proportional to 483.26, 666.38 and 358.71 is: 494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.26 : 666.38 = 358.71 : x
  2. Step 2: Convert to fraction form
    483.26/666.38 = 358.71/x
  3. Step 3: Cross multiply
    483.26x = 666.38 × 358.71
  4. Step 4: Simplify right side
    483.26x = 239,035.38
  5. Step 5: Solve for x
    x = 239,035.38/483.26
  6. Step 6: Final answer
    x = 494.64

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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.