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Finding the Fourth Proportional to 200,486.12, 276,670.84 and 109,845.52

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Solution

The fourth proportional to 200,486.12, 276,670.84 and 109,845.52 is: 151,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,486.12 : 276,670.84 = 109,845.52 : x
  2. Step 2: Convert to fraction form
    200,486.12/276,670.84 = 109,845.52/x
  3. Step 3: Cross multiply
    200,486.12x = 276,670.84 × 109,845.52
  4. Step 4: Simplify right side
    200,486.12x = 30,391,052,288.64
  5. Step 5: Solve for x
    x = 30,391,052,288.64/200,486.12
  6. Step 6: Final answer
    x = 151,586.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.