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Finding the Fourth Proportional to 219.99, 303.66 and 132.67

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Solution

The fourth proportional to 219.99, 303.66 and 132.67 is: 183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.99 : 303.66 = 132.67 : x
  2. Step 2: Convert to fraction form
    219.99/303.66 = 132.67/x
  3. Step 3: Cross multiply
    219.99x = 303.66 × 132.67
  4. Step 4: Simplify right side
    219.99x = 40,285.81
  5. Step 5: Solve for x
    x = 40,285.81/219.99
  6. Step 6: Final answer
    x = 183.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.