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Finding the Fourth Proportional to 373.87, 557.50 and 322.84

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Solution

The fourth proportional to 373.87, 557.50 and 322.84 is: 481.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.87 : 557.50 = 322.84 : x
  2. Step 2: Convert to fraction form
    373.87/557.50 = 322.84/x
  3. Step 3: Cross multiply
    373.87x = 557.50 × 322.84
  4. Step 4: Simplify right side
    373.87x = 179,983.30
  5. Step 5: Solve for x
    x = 179,983.30/373.87
  6. Step 6: Final answer
    x = 481.41

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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.