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Finding the Fourth Proportional to 395.03, 591.60 and 303.05

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Solution

The fourth proportional to 395.03, 591.60 and 303.05 is: 453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.03 : 591.60 = 303.05 : x
  2. Step 2: Convert to fraction form
    395.03/591.60 = 303.05/x
  3. Step 3: Cross multiply
    395.03x = 591.60 × 303.05
  4. Step 4: Simplify right side
    395.03x = 179,284.38
  5. Step 5: Solve for x
    x = 179,284.38/395.03
  6. Step 6: Final answer
    x = 453.85

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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.