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Finding the Fourth Proportional to 608.27, 839.50 and 443.23

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Solution

The fourth proportional to 608.27, 839.50 and 443.23 is: 611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.27 : 839.50 = 443.23 : x
  2. Step 2: Convert to fraction form
    608.27/839.50 = 443.23/x
  3. Step 3: Cross multiply
    608.27x = 839.50 × 443.23
  4. Step 4: Simplify right side
    608.27x = 372,088.38
  5. Step 5: Solve for x
    x = 372,088.38/608.27
  6. Step 6: Final answer
    x = 611.72

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1.5x scale

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.