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Finding the Fourth Proportional to 245.08, 368.96 and 223.55

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Solution

The fourth proportional to 245.08, 368.96 and 223.55 is: 336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.08 : 368.96 = 223.55 : x
  2. Step 2: Convert to fraction form
    245.08/368.96 = 223.55/x
  3. Step 3: Cross multiply
    245.08x = 368.96 × 223.55
  4. Step 4: Simplify right side
    245.08x = 82,479.89
  5. Step 5: Solve for x
    x = 82,479.89/245.08
  6. Step 6: Final answer
    x = 336.54

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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.