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Finding the Fourth Proportional to 525.49, 788.16 and 200.81

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Solution

The fourth proportional to 525.49, 788.16 and 200.81 is: 301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.49 : 788.16 = 200.81 : x
  2. Step 2: Convert to fraction form
    525.49/788.16 = 200.81/x
  3. Step 3: Cross multiply
    525.49x = 788.16 × 200.81
  4. Step 4: Simplify right side
    525.49x = 158,273.13
  5. Step 5: Solve for x
    x = 158,273.13/525.49
  6. Step 6: Final answer
    x = 301.19

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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.