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Finding the Fourth Proportional to 266.85, 368.19 and 150.39

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Solution

The fourth proportional to 266.85, 368.19 and 150.39 is: 207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.85 : 368.19 = 150.39 : x
  2. Step 2: Convert to fraction form
    266.85/368.19 = 150.39/x
  3. Step 3: Cross multiply
    266.85x = 368.19 × 150.39
  4. Step 4: Simplify right side
    266.85x = 55,372.09
  5. Step 5: Solve for x
    x = 55,372.09/266.85
  6. Step 6: Final answer
    x = 207.50

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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.