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Finding the Fourth Proportional to 1,166.50, 1,749.62 and 300.82

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Solution

The fourth proportional to 1,166.50, 1,749.62 and 300.82 is: 451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.50 : 1,749.62 = 300.82 : x
  2. Step 2: Convert to fraction form
    1,166.50/1,749.62 = 300.82/x
  3. Step 3: Cross multiply
    1,166.50x = 1,749.62 × 300.82
  4. Step 4: Simplify right side
    1,166.50x = 526,320.69
  5. Step 5: Solve for x
    x = 526,320.69/1,166.50
  6. Step 6: Final answer
    x = 451.20

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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.