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Finding the Fourth Proportional to 452.08, 623.28 and 377.20

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Solution

The fourth proportional to 452.08, 623.28 and 377.20 is: 520.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.08 : 623.28 = 377.20 : x
  2. Step 2: Convert to fraction form
    452.08/623.28 = 377.20/x
  3. Step 3: Cross multiply
    452.08x = 623.28 × 377.20
  4. Step 4: Simplify right side
    452.08x = 235,101.22
  5. Step 5: Solve for x
    x = 235,101.22/452.08
  6. Step 6: Final answer
    x = 520.04

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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.