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Finding the Fourth Proportional to 452.16, 623.99 and 255.66

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Solution

The fourth proportional to 452.16, 623.99 and 255.66 is: 352.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.16 : 623.99 = 255.66 : x
  2. Step 2: Convert to fraction form
    452.16/623.99 = 255.66/x
  3. Step 3: Cross multiply
    452.16x = 623.99 × 255.66
  4. Step 4: Simplify right side
    452.16x = 159,528.01
  5. Step 5: Solve for x
    x = 159,528.01/452.16
  6. Step 6: Final answer
    x = 352.81

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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.