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Finding the Fourth Proportional to 453.72, 624.74 and 374.75

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Solution

The fourth proportional to 453.72, 624.74 and 374.75 is: 516.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.72 : 624.74 = 374.75 : x
  2. Step 2: Convert to fraction form
    453.72/624.74 = 374.75/x
  3. Step 3: Cross multiply
    453.72x = 624.74 × 374.75
  4. Step 4: Simplify right side
    453.72x = 234,121.32
  5. Step 5: Solve for x
    x = 234,121.32/453.72
  6. Step 6: Final answer
    x = 516.00

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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.