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Finding the Fourth Proportional to 383.88, 579.24 and 368.88

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Solution

The fourth proportional to 383.88, 579.24 and 368.88 is: 556.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.88 : 579.24 = 368.88 : x
  2. Step 2: Convert to fraction form
    383.88/579.24 = 368.88/x
  3. Step 3: Cross multiply
    383.88x = 579.24 × 368.88
  4. Step 4: Simplify right side
    383.88x = 213,670.05
  5. Step 5: Solve for x
    x = 213,670.05/383.88
  6. Step 6: Final answer
    x = 556.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.