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Finding the Fourth Proportional to 452.16, 676.80 and 356.16

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Solution

The fourth proportional to 452.16, 676.80 and 356.16 is: 533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.16 : 676.80 = 356.16 : x
  2. Step 2: Convert to fraction form
    452.16/676.80 = 356.16/x
  3. Step 3: Cross multiply
    452.16x = 676.80 × 356.16
  4. Step 4: Simplify right side
    452.16x = 241,049.09
  5. Step 5: Solve for x
    x = 241,049.09/452.16
  6. Step 6: Final answer
    x = 533.11

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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.