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Finding the Fourth Proportional to 388.75, 582.28 and 183.01

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Solution

The fourth proportional to 388.75, 582.28 and 183.01 is: 274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.75 : 582.28 = 183.01 : x
  2. Step 2: Convert to fraction form
    388.75/582.28 = 183.01/x
  3. Step 3: Cross multiply
    388.75x = 582.28 × 183.01
  4. Step 4: Simplify right side
    388.75x = 106,560.15
  5. Step 5: Solve for x
    x = 106,560.15/388.75
  6. Step 6: Final answer
    x = 274.11

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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.