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Finding the Fourth Proportional to 452.54, 624.34 and 275.45

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Solution

The fourth proportional to 452.54, 624.34 and 275.45 is: 380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.54 : 624.34 = 275.45 : x
  2. Step 2: Convert to fraction form
    452.54/624.34 = 275.45/x
  3. Step 3: Cross multiply
    452.54x = 624.34 × 275.45
  4. Step 4: Simplify right side
    452.54x = 171,974.45
  5. Step 5: Solve for x
    x = 171,974.45/452.54
  6. Step 6: Final answer
    x = 380.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.