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Finding the Fourth Proportional to 623.26, 860.07 and 374.49

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Solution

The fourth proportional to 623.26, 860.07 and 374.49 is: 516.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.26 : 860.07 = 374.49 : x
  2. Step 2: Convert to fraction form
    623.26/860.07 = 374.49/x
  3. Step 3: Cross multiply
    623.26x = 860.07 × 374.49
  4. Step 4: Simplify right side
    623.26x = 322,081.44
  5. Step 5: Solve for x
    x = 322,081.44/623.26
  6. Step 6: Final answer
    x = 516.77

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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.