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Finding the Fourth Proportional to 548.99, 823.62 and 164.24

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Solution

The fourth proportional to 548.99, 823.62 and 164.24 is: 246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.99 : 823.62 = 164.24 : x
  2. Step 2: Convert to fraction form
    548.99/823.62 = 164.24/x
  3. Step 3: Cross multiply
    548.99x = 823.62 × 164.24
  4. Step 4: Simplify right side
    548.99x = 135,267.23
  5. Step 5: Solve for x
    x = 135,267.23/548.99
  6. Step 6: Final answer
    x = 246.40

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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.