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Finding the Fourth Proportional to 219, 330.21 and 176.76

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Solution

The fourth proportional to 219, 330.21 and 176.76 is: 266.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219 : 330.21 = 176.76 : x
  2. Step 2: Convert to fraction form
    219/330.21 = 176.76/x
  3. Step 3: Cross multiply
    219x = 330.21 × 176.76
  4. Step 4: Simplify right side
    219x = 58,367.92
  5. Step 5: Solve for x
    x = 58,367.92/219
  6. Step 6: Final answer
    x = 266.52

Related Problems

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.