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Finding the Fourth Proportional to 266.08, 367.04 and 172.69

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Solution

The fourth proportional to 266.08, 367.04 and 172.69 is: 238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.08 : 367.04 = 172.69 : x
  2. Step 2: Convert to fraction form
    266.08/367.04 = 172.69/x
  3. Step 3: Cross multiply
    266.08x = 367.04 × 172.69
  4. Step 4: Simplify right side
    266.08x = 63,384.14
  5. Step 5: Solve for x
    x = 63,384.14/266.08
  6. Step 6: Final answer
    x = 238.21

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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.