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Finding the Fourth Proportional to 550.58, 759.38 and 384.62

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Solution

The fourth proportional to 550.58, 759.38 and 384.62 is: 530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.58 : 759.38 = 384.62 : x
  2. Step 2: Convert to fraction form
    550.58/759.38 = 384.62/x
  3. Step 3: Cross multiply
    550.58x = 759.38 × 384.62
  4. Step 4: Simplify right side
    550.58x = 292,067.02
  5. Step 5: Solve for x
    x = 292,067.02/550.58
  6. Step 6: Final answer
    x = 530.48

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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.