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Finding the Fourth Proportional to 266.10, 401.33 and 266.10

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Solution

The fourth proportional to 266.10, 401.33 and 266.10 is: 401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.10 : 401.33 = 266.10 : x
  2. Step 2: Convert to fraction form
    266.10/401.33 = 266.10/x
  3. Step 3: Cross multiply
    266.10x = 401.33 × 266.10
  4. Step 4: Simplify right side
    266.10x = 106,792.58
  5. Step 5: Solve for x
    x = 106,792.58/266.10
  6. Step 6: Final answer
    x = 401.33

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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.