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Finding the Fourth Proportional to 190.04, 285.03 and 92.45

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Solution

The fourth proportional to 190.04, 285.03 and 92.45 is: 138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.04 : 285.03 = 92.45 : x
  2. Step 2: Convert to fraction form
    190.04/285.03 = 92.45/x
  3. Step 3: Cross multiply
    190.04x = 285.03 × 92.45
  4. Step 4: Simplify right side
    190.04x = 26,349.60
  5. Step 5: Solve for x
    x = 26,349.60/190.04
  6. Step 6: Final answer
    x = 138.66

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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.