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Finding the Fourth Proportional to 548.88, 823.16 and 357.52

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Solution

The fourth proportional to 548.88, 823.16 and 357.52 is: 536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.88 : 823.16 = 357.52 : x
  2. Step 2: Convert to fraction form
    548.88/823.16 = 357.52/x
  3. Step 3: Cross multiply
    548.88x = 823.16 × 357.52
  4. Step 4: Simplify right side
    548.88x = 294,296.16
  5. Step 5: Solve for x
    x = 294,296.16/548.88
  6. Step 6: Final answer
    x = 536.18

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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.