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Finding the Fourth Proportional to 484.51, 668.61 and 263.46

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Solution

The fourth proportional to 484.51, 668.61 and 263.46 is: 363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.51 : 668.61 = 263.46 : x
  2. Step 2: Convert to fraction form
    484.51/668.61 = 263.46/x
  3. Step 3: Cross multiply
    484.51x = 668.61 × 263.46
  4. Step 4: Simplify right side
    484.51x = 176,149.48
  5. Step 5: Solve for x
    x = 176,149.48/484.51
  6. Step 6: Final answer
    x = 363.56

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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.