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Finding the Fourth Proportional to 623.03, 859.43 and 374.27

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Solution

The fourth proportional to 623.03, 859.43 and 374.27 is: 516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.03 : 859.43 = 374.27 : x
  2. Step 2: Convert to fraction form
    623.03/859.43 = 374.27/x
  3. Step 3: Cross multiply
    623.03x = 859.43 × 374.27
  4. Step 4: Simplify right side
    623.03x = 321,656.99
  5. Step 5: Solve for x
    x = 321,656.99/623.03
  6. Step 6: Final answer
    x = 516.28

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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.