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Finding the Fourth Proportional to 623.24, 860.15 and 361.27

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Solution

The fourth proportional to 623.24, 860.15 and 361.27 is: 498.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.24 : 860.15 = 361.27 : x
  2. Step 2: Convert to fraction form
    623.24/860.15 = 361.27/x
  3. Step 3: Cross multiply
    623.24x = 860.15 × 361.27
  4. Step 4: Simplify right side
    623.24x = 310,740.28
  5. Step 5: Solve for x
    x = 310,740.28/623.24
  6. Step 6: Final answer
    x = 498.59

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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.