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Finding the Fourth Proportional to 880.33, 1,320.50 and 231.07

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Solution

The fourth proportional to 880.33, 1,320.50 and 231.07 is: 346.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.33 : 1,320.50 = 231.07 : x
  2. Step 2: Convert to fraction form
    880.33/1,320.50 = 231.07/x
  3. Step 3: Cross multiply
    880.33x = 1,320.50 × 231.07
  4. Step 4: Simplify right side
    880.33x = 305,127.94
  5. Step 5: Solve for x
    x = 305,127.94/880.33
  6. Step 6: Final answer
    x = 346.61

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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.