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Finding the Fourth Proportional to 623.23, 860.02 and 343.41

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Solution

The fourth proportional to 623.23, 860.02 and 343.41 is: 473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.23 : 860.02 = 343.41 : x
  2. Step 2: Convert to fraction form
    623.23/860.02 = 343.41/x
  3. Step 3: Cross multiply
    623.23x = 860.02 × 343.41
  4. Step 4: Simplify right side
    623.23x = 295,335.38
  5. Step 5: Solve for x
    x = 295,335.38/623.23
  6. Step 6: Final answer
    x = 473.88

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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.