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Finding the Fourth Proportional to 484.48, 668.60 and 277.52

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Solution

The fourth proportional to 484.48, 668.60 and 277.52 is: 382.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.48 : 668.60 = 277.52 : x
  2. Step 2: Convert to fraction form
    484.48/668.60 = 277.52/x
  3. Step 3: Cross multiply
    484.48x = 668.60 × 277.52
  4. Step 4: Simplify right side
    484.48x = 185,549.87
  5. Step 5: Solve for x
    x = 185,549.87/484.48
  6. Step 6: Final answer
    x = 382.99

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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.