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Finding the Fourth Proportional to 319.84, 480.09 and 183.01

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Solution

The fourth proportional to 319.84, 480.09 and 183.01 is: 274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.84 : 480.09 = 183.01 : x
  2. Step 2: Convert to fraction form
    319.84/480.09 = 183.01/x
  3. Step 3: Cross multiply
    319.84x = 480.09 × 183.01
  4. Step 4: Simplify right side
    319.84x = 87,861.27
  5. Step 5: Solve for x
    x = 87,861.27/319.84
  6. Step 6: Final answer
    x = 274.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.