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Finding the Fourth Proportional to 484.92, 668.79 and 368.28

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Solution

The fourth proportional to 484.92, 668.79 and 368.28 is: 507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.92 : 668.79 = 368.28 : x
  2. Step 2: Convert to fraction form
    484.92/668.79 = 368.28/x
  3. Step 3: Cross multiply
    484.92x = 668.79 × 368.28
  4. Step 4: Simplify right side
    484.92x = 246,301.98
  5. Step 5: Solve for x
    x = 246,301.98/484.92
  6. Step 6: Final answer
    x = 507.92

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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.