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Finding the Fourth Proportional to 488.77, 733.07 and 214.67

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Solution

The fourth proportional to 488.77, 733.07 and 214.67 is: 321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.77 : 733.07 = 214.67 : x
  2. Step 2: Convert to fraction form
    488.77/733.07 = 214.67/x
  3. Step 3: Cross multiply
    488.77x = 733.07 × 214.67
  4. Step 4: Simplify right side
    488.77x = 157,370.51
  5. Step 5: Solve for x
    x = 157,370.51/488.77
  6. Step 6: Final answer
    x = 321.97

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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.