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Finding the Fourth Proportional to 266.48, 368.04 and 235.28

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Solution

The fourth proportional to 266.48, 368.04 and 235.28 is: 324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.48 : 368.04 = 235.28 : x
  2. Step 2: Convert to fraction form
    266.48/368.04 = 235.28/x
  3. Step 3: Cross multiply
    266.48x = 368.04 × 235.28
  4. Step 4: Simplify right side
    266.48x = 86,592.45
  5. Step 5: Solve for x
    x = 86,592.45/266.48
  6. Step 6: Final answer
    x = 324.95

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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.