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Finding the Fourth Proportional to 373.96, 558.19 and 330.17

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Solution

The fourth proportional to 373.96, 558.19 and 330.17 is: 492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.96 : 558.19 = 330.17 : x
  2. Step 2: Convert to fraction form
    373.96/558.19 = 330.17/x
  3. Step 3: Cross multiply
    373.96x = 558.19 × 330.17
  4. Step 4: Simplify right side
    373.96x = 184,297.59
  5. Step 5: Solve for x
    x = 184,297.59/373.96
  6. Step 6: Final answer
    x = 492.83

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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.