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Finding the Fourth Proportional to 452.07, 623.78 and 272.58

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Solution

The fourth proportional to 452.07, 623.78 and 272.58 is: 376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.07 : 623.78 = 272.58 : x
  2. Step 2: Convert to fraction form
    452.07/623.78 = 272.58/x
  3. Step 3: Cross multiply
    452.07x = 623.78 × 272.58
  4. Step 4: Simplify right side
    452.07x = 170,028.59
  5. Step 5: Solve for x
    x = 170,028.59/452.07
  6. Step 6: Final answer
    x = 376.11

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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.