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Finding the Fourth Proportional to 368.04, 550.80 and 231.12

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Solution

The fourth proportional to 368.04, 550.80 and 231.12 is: 345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.04 : 550.80 = 231.12 : x
  2. Step 2: Convert to fraction form
    368.04/550.80 = 231.12/x
  3. Step 3: Cross multiply
    368.04x = 550.80 × 231.12
  4. Step 4: Simplify right side
    368.04x = 127,300.90
  5. Step 5: Solve for x
    x = 127,300.90/368.04
  6. Step 6: Final answer
    x = 345.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.