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Finding the Fourth Proportional to 149.99, 204.36 and 146.64

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Solution

The fourth proportional to 149.99, 204.36 and 146.64 is: 199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.99 : 204.36 = 146.64 : x
  2. Step 2: Convert to fraction form
    149.99/204.36 = 146.64/x
  3. Step 3: Cross multiply
    149.99x = 204.36 × 146.64
  4. Step 4: Simplify right side
    149.99x = 29,967.57
  5. Step 5: Solve for x
    x = 29,967.57/149.99
  6. Step 6: Final answer
    x = 199.80

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.