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Finding the Fourth Proportional to 376.01, 518.64 and 220.67

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Solution

The fourth proportional to 376.01, 518.64 and 220.67 is: 304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.01 : 518.64 = 220.67 : x
  2. Step 2: Convert to fraction form
    376.01/518.64 = 220.67/x
  3. Step 3: Cross multiply
    376.01x = 518.64 × 220.67
  4. Step 4: Simplify right side
    376.01x = 114,448.29
  5. Step 5: Solve for x
    x = 114,448.29/376.01
  6. Step 6: Final answer
    x = 304.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.