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Finding the Fourth Proportional to 484.62, 668.88 and 358.98

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Solution

The fourth proportional to 484.62, 668.88 and 358.98 is: 495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.62 : 668.88 = 358.98 : x
  2. Step 2: Convert to fraction form
    484.62/668.88 = 358.98/x
  3. Step 3: Cross multiply
    484.62x = 668.88 × 358.98
  4. Step 4: Simplify right side
    484.62x = 240,114.54
  5. Step 5: Solve for x
    x = 240,114.54/484.62
  6. Step 6: Final answer
    x = 495.47

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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.