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Finding the Fourth Proportional to 368.73, 555.24 and 266.73

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Solution

The fourth proportional to 368.73, 555.24 and 266.73 is: 401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.73 : 555.24 = 266.73 : x
  2. Step 2: Convert to fraction form
    368.73/555.24 = 266.73/x
  3. Step 3: Cross multiply
    368.73x = 555.24 × 266.73
  4. Step 4: Simplify right side
    368.73x = 148,099.17
  5. Step 5: Solve for x
    x = 148,099.17/368.73
  6. Step 6: Final answer
    x = 401.65

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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.