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Finding the Fourth Proportional to 451.52, 623.16 and 377.72

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Solution

The fourth proportional to 451.52, 623.16 and 377.72 is: 521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.52 : 623.16 = 377.72 : x
  2. Step 2: Convert to fraction form
    451.52/623.16 = 377.72/x
  3. Step 3: Cross multiply
    451.52x = 623.16 × 377.72
  4. Step 4: Simplify right side
    451.52x = 235,380.00
  5. Step 5: Solve for x
    x = 235,380.00/451.52
  6. Step 6: Final answer
    x = 521.31

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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.