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Finding the Fourth Proportional to 606.81, 910.64 and 282.22

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Solution

The fourth proportional to 606.81, 910.64 and 282.22 is: 423.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.81 : 910.64 = 282.22 : x
  2. Step 2: Convert to fraction form
    606.81/910.64 = 282.22/x
  3. Step 3: Cross multiply
    606.81x = 910.64 × 282.22
  4. Step 4: Simplify right side
    606.81x = 257,000.82
  5. Step 5: Solve for x
    x = 257,000.82/606.81
  6. Step 6: Final answer
    x = 423.53

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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.