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Finding the Fourth Proportional to 266.92, 368.37 and 148.91

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Solution

The fourth proportional to 266.92, 368.37 and 148.91 is: 205.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.92 : 368.37 = 148.91 : x
  2. Step 2: Convert to fraction form
    266.92/368.37 = 148.91/x
  3. Step 3: Cross multiply
    266.92x = 368.37 × 148.91
  4. Step 4: Simplify right side
    266.92x = 54,852.13
  5. Step 5: Solve for x
    x = 54,852.13/266.92
  6. Step 6: Final answer
    x = 205.50

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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.