Finding the Fourth Proportional to 213,328.30, 319,906.05 and 73,014.70
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Solution
The fourth proportional to 213,328.30, 319,906.05 and 73,014.70 is: 109,492.48
Step by Step Solution
- Step 1: Write the proportion equation
213,328.30 : 319,906.05 = 73,014.70 : x - Step 2: Convert to fraction form
213,328.30/319,906.05 = 73,014.70/x - Step 3: Cross multiply
213,328.30x = 319,906.05 × 73,014.70 - Step 4: Simplify right side
213,328.30x = 23,357,844,268.94 - Step 5: Solve for x
x = 23,357,844,268.94/213,328.30 - Step 6: Final answer
x = 109,492.48
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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.