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Finding the Fourth Proportional to 334.93, 499.44 and 311.85

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Solution

The fourth proportional to 334.93, 499.44 and 311.85 is: 465.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.93 : 499.44 = 311.85 : x
  2. Step 2: Convert to fraction form
    334.93/499.44 = 311.85/x
  3. Step 3: Cross multiply
    334.93x = 499.44 × 311.85
  4. Step 4: Simplify right side
    334.93x = 155,750.36
  5. Step 5: Solve for x
    x = 155,750.36/334.93
  6. Step 6: Final answer
    x = 465.02

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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.