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Finding the Fourth Proportional to 395.30, 591.87 and 202.52

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Solution

The fourth proportional to 395.30, 591.87 and 202.52 is: 303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.30 : 591.87 = 202.52 : x
  2. Step 2: Convert to fraction form
    395.30/591.87 = 202.52/x
  3. Step 3: Cross multiply
    395.30x = 591.87 × 202.52
  4. Step 4: Simplify right side
    395.30x = 119,865.51
  5. Step 5: Solve for x
    x = 119,865.51/395.30
  6. Step 6: Final answer
    x = 303.23

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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.