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Finding the Fourth Proportional to 196.70, 294.93 and 148.50

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Solution

The fourth proportional to 196.70, 294.93 and 148.50 is: 222.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.70 : 294.93 = 148.50 : x
  2. Step 2: Convert to fraction form
    196.70/294.93 = 148.50/x
  3. Step 3: Cross multiply
    196.70x = 294.93 × 148.50
  4. Step 4: Simplify right side
    196.70x = 43,797.11
  5. Step 5: Solve for x
    x = 43,797.11/196.70
  6. Step 6: Final answer
    x = 222.67

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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.