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Finding the Fourth Proportional to 484.79, 669.49 and 335.81

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Solution

The fourth proportional to 484.79, 669.49 and 335.81 is: 463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.79 : 669.49 = 335.81 : x
  2. Step 2: Convert to fraction form
    484.79/669.49 = 335.81/x
  3. Step 3: Cross multiply
    484.79x = 669.49 × 335.81
  4. Step 4: Simplify right side
    484.79x = 224,822.27
  5. Step 5: Solve for x
    x = 224,822.27/484.79
  6. Step 6: Final answer
    x = 463.76

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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.