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Finding the Fourth Proportional to 373.61, 557.94 and 322.38

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Solution

The fourth proportional to 373.61, 557.94 and 322.38 is: 481.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.61 : 557.94 = 322.38 : x
  2. Step 2: Convert to fraction form
    373.61/557.94 = 322.38/x
  3. Step 3: Cross multiply
    373.61x = 557.94 × 322.38
  4. Step 4: Simplify right side
    373.61x = 179,868.09
  5. Step 5: Solve for x
    x = 179,868.09/373.61
  6. Step 6: Final answer
    x = 481.43

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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.