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Finding the Fourth Proportional to 435.68, 600.26 and 400.80

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Solution

The fourth proportional to 435.68, 600.26 and 400.80 is: 552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.68 : 600.26 = 400.80 : x
  2. Step 2: Convert to fraction form
    435.68/600.26 = 400.80/x
  3. Step 3: Cross multiply
    435.68x = 600.26 × 400.80
  4. Step 4: Simplify right side
    435.68x = 240,583.33
  5. Step 5: Solve for x
    x = 240,583.33/435.68
  6. Step 6: Final answer
    x = 552.20

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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.