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Finding the Fourth Proportional to 408.48, 563.04 and 373.44

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Solution

The fourth proportional to 408.48, 563.04 and 373.44 is: 514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    408.48 : 563.04 = 373.44 : x
  2. Step 2: Convert to fraction form
    408.48/563.04 = 373.44/x
  3. Step 3: Cross multiply
    408.48x = 563.04 × 373.44
  4. Step 4: Simplify right side
    408.48x = 210,261.66
  5. Step 5: Solve for x
    x = 210,261.66/408.48
  6. Step 6: Final answer
    x = 514.74

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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.