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Finding the Fourth Proportional to 383.02, 573.66 and 280.18

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Solution

The fourth proportional to 383.02, 573.66 and 280.18 is: 419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.02 : 573.66 = 280.18 : x
  2. Step 2: Convert to fraction form
    383.02/573.66 = 280.18/x
  3. Step 3: Cross multiply
    383.02x = 573.66 × 280.18
  4. Step 4: Simplify right side
    383.02x = 160,728.06
  5. Step 5: Solve for x
    x = 160,728.06/383.02
  6. Step 6: Final answer
    x = 419.63

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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.