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Finding the Fourth Proportional to 550.04, 825.66 and 319.19

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Solution

The fourth proportional to 550.04, 825.66 and 319.19 is: 479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.04 : 825.66 = 319.19 : x
  2. Step 2: Convert to fraction form
    550.04/825.66 = 319.19/x
  3. Step 3: Cross multiply
    550.04x = 825.66 × 319.19
  4. Step 4: Simplify right side
    550.04x = 263,538.29
  5. Step 5: Solve for x
    x = 263,538.29/550.04
  6. Step 6: Final answer
    x = 479.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.