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Finding the Fourth Proportional to 190.08, 285.15 and 60.11

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Solution

The fourth proportional to 190.08, 285.15 and 60.11 is: 90.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.08 : 285.15 = 60.11 : x
  2. Step 2: Convert to fraction form
    190.08/285.15 = 60.11/x
  3. Step 3: Cross multiply
    190.08x = 285.15 × 60.11
  4. Step 4: Simplify right side
    190.08x = 17,140.24
  5. Step 5: Solve for x
    x = 17,140.24/190.08
  6. Step 6: Final answer
    x = 90.17

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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.