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Finding the Fourth Proportional to 525.75, 788.73 and 282.24

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Solution

The fourth proportional to 525.75, 788.73 and 282.24 is: 423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.75 : 788.73 = 282.24 : x
  2. Step 2: Convert to fraction form
    525.75/788.73 = 282.24/x
  3. Step 3: Cross multiply
    525.75x = 788.73 × 282.24
  4. Step 4: Simplify right side
    525.75x = 222,611.16
  5. Step 5: Solve for x
    x = 222,611.16/525.75
  6. Step 6: Final answer
    x = 423.42

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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.