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Finding the Fourth Proportional to 178.06, 266.73 and 170.50

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Solution

The fourth proportional to 178.06, 266.73 and 170.50 is: 255.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.06 : 266.73 = 170.50 : x
  2. Step 2: Convert to fraction form
    178.06/266.73 = 170.50/x
  3. Step 3: Cross multiply
    178.06x = 266.73 × 170.50
  4. Step 4: Simplify right side
    178.06x = 45,477.47
  5. Step 5: Solve for x
    x = 45,477.47/178.06
  6. Step 6: Final answer
    x = 255.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.