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Finding the Fourth Proportional to 374.13, 558.18 and 333.09

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Solution

The fourth proportional to 374.13, 558.18 and 333.09 is: 496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.13 : 558.18 = 333.09 : x
  2. Step 2: Convert to fraction form
    374.13/558.18 = 333.09/x
  3. Step 3: Cross multiply
    374.13x = 558.18 × 333.09
  4. Step 4: Simplify right side
    374.13x = 185,924.18
  5. Step 5: Solve for x
    x = 185,924.18/374.13
  6. Step 6: Final answer
    x = 496.95

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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.