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Finding the Fourth Proportional to 483.36, 668.40 and 459.84

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Solution

The fourth proportional to 483.36, 668.40 and 459.84 is: 635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.36 : 668.40 = 459.84 : x
  2. Step 2: Convert to fraction form
    483.36/668.40 = 459.84/x
  3. Step 3: Cross multiply
    483.36x = 668.40 × 459.84
  4. Step 4: Simplify right side
    483.36x = 307,357.06
  5. Step 5: Solve for x
    x = 307,357.06/483.36
  6. Step 6: Final answer
    x = 635.88

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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.