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Finding the Fourth Proportional to 266.94, 368.34 and 148.92

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Solution

The fourth proportional to 266.94, 368.34 and 148.92 is: 205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.94 : 368.34 = 148.92 : x
  2. Step 2: Convert to fraction form
    266.94/368.34 = 148.92/x
  3. Step 3: Cross multiply
    266.94x = 368.34 × 148.92
  4. Step 4: Simplify right side
    266.94x = 54,853.19
  5. Step 5: Solve for x
    x = 54,853.19/266.94
  6. Step 6: Final answer
    x = 205.49

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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.