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Finding the Fourth Proportional to 266.70, 368.10 and 150.30

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Solution

The fourth proportional to 266.70, 368.10 and 150.30 is: 207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.70 : 368.10 = 150.30 : x
  2. Step 2: Convert to fraction form
    266.70/368.10 = 150.30/x
  3. Step 3: Cross multiply
    266.70x = 368.10 × 150.30
  4. Step 4: Simplify right side
    266.70x = 55,325.43
  5. Step 5: Solve for x
    x = 55,325.43/266.70
  6. Step 6: Final answer
    x = 207.44

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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.