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Finding the Fourth Proportional to 448.23, 668.86 and 402.27

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Solution

The fourth proportional to 448.23, 668.86 and 402.27 is: 600.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.23 : 668.86 = 402.27 : x
  2. Step 2: Convert to fraction form
    448.23/668.86 = 402.27/x
  3. Step 3: Cross multiply
    448.23x = 668.86 × 402.27
  4. Step 4: Simplify right side
    448.23x = 269,058.80
  5. Step 5: Solve for x
    x = 269,058.80/448.23
  6. Step 6: Final answer
    x = 600.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.