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Finding the Fourth Proportional to 373.88, 557.19 and 354.44

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Solution

The fourth proportional to 373.88, 557.19 and 354.44 is: 528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.88 : 557.19 = 354.44 : x
  2. Step 2: Convert to fraction form
    373.88/557.19 = 354.44/x
  3. Step 3: Cross multiply
    373.88x = 557.19 × 354.44
  4. Step 4: Simplify right side
    373.88x = 197,487.64
  5. Step 5: Solve for x
    x = 197,487.64/373.88
  6. Step 6: Final answer
    x = 528.22

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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.