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Finding the Fourth Proportional to 400.24, 598.76 and 271.60

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Solution

The fourth proportional to 400.24, 598.76 and 271.60 is: 406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.24 : 598.76 = 271.60 : x
  2. Step 2: Convert to fraction form
    400.24/598.76 = 271.60/x
  3. Step 3: Cross multiply
    400.24x = 598.76 × 271.60
  4. Step 4: Simplify right side
    400.24x = 162,623.22
  5. Step 5: Solve for x
    x = 162,623.22/400.24
  6. Step 6: Final answer
    x = 406.31

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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.