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Finding the Fourth Proportional to 548.88, 822.72 and 332.40

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Solution

The fourth proportional to 548.88, 822.72 and 332.40 is: 498.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.88 : 822.72 = 332.40 : x
  2. Step 2: Convert to fraction form
    548.88/822.72 = 332.40/x
  3. Step 3: Cross multiply
    548.88x = 822.72 × 332.40
  4. Step 4: Simplify right side
    548.88x = 273,472.13
  5. Step 5: Solve for x
    x = 273,472.13/548.88
  6. Step 6: Final answer
    x = 498.24

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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.