Finding the Fourth Proportional to 204,749.37, 306,978.57 and 78,282.99
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Solution
The fourth proportional to 204,749.37, 306,978.57 and 78,282.99 is: 117,368.86
Step by Step Solution
- Step 1: Write the proportion equation
204,749.37 : 306,978.57 = 78,282.99 : x - Step 2: Convert to fraction form
204,749.37/306,978.57 = 78,282.99/x - Step 3: Cross multiply
204,749.37x = 306,978.57 × 78,282.99 - Step 4: Simplify right side
204,749.37x = 24,031,200,325.52 - Step 5: Solve for x
x = 24,031,200,325.52/204,749.37 - Step 6: Final answer
x = 117,368.86
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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.