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Finding the Fourth Proportional to 199.02, 297.93 and 127.02

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Solution

The fourth proportional to 199.02, 297.93 and 127.02 is: 190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199.02 : 297.93 = 127.02 : x
  2. Step 2: Convert to fraction form
    199.02/297.93 = 127.02/x
  3. Step 3: Cross multiply
    199.02x = 297.93 × 127.02
  4. Step 4: Simplify right side
    199.02x = 37,843.07
  5. Step 5: Solve for x
    x = 37,843.07/199.02
  6. Step 6: Final answer
    x = 190.15

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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.