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Finding the Fourth Proportional to 482.22, 722.63 and 262.67

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Solution

The fourth proportional to 482.22, 722.63 and 262.67 is: 393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.22 : 722.63 = 262.67 : x
  2. Step 2: Convert to fraction form
    482.22/722.63 = 262.67/x
  3. Step 3: Cross multiply
    482.22x = 722.63 × 262.67
  4. Step 4: Simplify right side
    482.22x = 189,808.30
  5. Step 5: Solve for x
    x = 189,808.30/482.22
  6. Step 6: Final answer
    x = 393.61

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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.