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Finding the Fourth Proportional to 452.54, 624.56 and 277.79

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Solution

The fourth proportional to 452.54, 624.56 and 277.79 is: 383.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.54 : 624.56 = 277.79 : x
  2. Step 2: Convert to fraction form
    452.54/624.56 = 277.79/x
  3. Step 3: Cross multiply
    452.54x = 624.56 × 277.79
  4. Step 4: Simplify right side
    452.54x = 173,492.01
  5. Step 5: Solve for x
    x = 173,492.01/452.54
  6. Step 6: Final answer
    x = 383.38

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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.