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Finding the Fourth Proportional to 606.43, 910.19 and 281.98

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Solution

The fourth proportional to 606.43, 910.19 and 281.98 is: 423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.43 : 910.19 = 281.98 : x
  2. Step 2: Convert to fraction form
    606.43/910.19 = 281.98/x
  3. Step 3: Cross multiply
    606.43x = 910.19 × 281.98
  4. Step 4: Simplify right side
    606.43x = 256,653.97
  5. Step 5: Solve for x
    x = 256,653.97/606.43
  6. Step 6: Final answer
    x = 423.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.