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Finding the Fourth Proportional to 251.51, 375.17 and 222.35

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Solution

The fourth proportional to 251.51, 375.17 and 222.35 is: 331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.51 : 375.17 = 222.35 : x
  2. Step 2: Convert to fraction form
    251.51/375.17 = 222.35/x
  3. Step 3: Cross multiply
    251.51x = 375.17 × 222.35
  4. Step 4: Simplify right side
    251.51x = 83,416.06
  5. Step 5: Solve for x
    x = 83,416.06/251.51
  6. Step 6: Final answer
    x = 331.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.