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Finding the Fourth Proportional to 223.21, 336.10 and 162.76

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Solution

The fourth proportional to 223.21, 336.10 and 162.76 is: 245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.21 : 336.10 = 162.76 : x
  2. Step 2: Convert to fraction form
    223.21/336.10 = 162.76/x
  3. Step 3: Cross multiply
    223.21x = 336.10 × 162.76
  4. Step 4: Simplify right side
    223.21x = 54,703.64
  5. Step 5: Solve for x
    x = 54,703.64/223.21
  6. Step 6: Final answer
    x = 245.08

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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.