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Finding the Fourth Proportional to 193.40, 290.04 and 102.08

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Solution

The fourth proportional to 193.40, 290.04 and 102.08 is: 153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.40 : 290.04 = 102.08 : x
  2. Step 2: Convert to fraction form
    193.40/290.04 = 102.08/x
  3. Step 3: Cross multiply
    193.40x = 290.04 × 102.08
  4. Step 4: Simplify right side
    193.40x = 29,607.28
  5. Step 5: Solve for x
    x = 29,607.28/193.40
  6. Step 6: Final answer
    x = 153.09

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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.