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Finding the Fourth Proportional to 608.32, 840.17 and 443.27

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Solution

The fourth proportional to 608.32, 840.17 and 443.27 is: 612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.32 : 840.17 = 443.27 : x
  2. Step 2: Convert to fraction form
    608.32/840.17 = 443.27/x
  3. Step 3: Cross multiply
    608.32x = 840.17 × 443.27
  4. Step 4: Simplify right side
    608.32x = 372,425.36
  5. Step 5: Solve for x
    x = 372,425.36/608.32
  6. Step 6: Final answer
    x = 612.22

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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.