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Finding the Fourth Proportional to 662.30, 993.58 and 200.12

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Solution

The fourth proportional to 662.30, 993.58 and 200.12 is: 300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.30 : 993.58 = 200.12 : x
  2. Step 2: Convert to fraction form
    662.30/993.58 = 200.12/x
  3. Step 3: Cross multiply
    662.30x = 993.58 × 200.12
  4. Step 4: Simplify right side
    662.30x = 198,835.23
  5. Step 5: Solve for x
    x = 198,835.23/662.30
  6. Step 6: Final answer
    x = 300.22

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1.5x scale

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.