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Finding the Fourth Proportional to 219.28, 330.23 and 185.26

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Solution

The fourth proportional to 219.28, 330.23 and 185.26 is: 279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.28 : 330.23 = 185.26 : x
  2. Step 2: Convert to fraction form
    219.28/330.23 = 185.26/x
  3. Step 3: Cross multiply
    219.28x = 330.23 × 185.26
  4. Step 4: Simplify right side
    219.28x = 61,178.41
  5. Step 5: Solve for x
    x = 61,178.41/219.28
  6. Step 6: Final answer
    x = 279.00

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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.