Finding the Fourth Proportional to 210,845.44, 316,267.76 and 68,690.54
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Solution
The fourth proportional to 210,845.44, 316,267.76 and 68,690.54 is: 103,035.68
Step by Step Solution
- Step 1: Write the proportion equation
210,845.44 : 316,267.76 = 68,690.54 : x - Step 2: Convert to fraction form
210,845.44/316,267.76 = 68,690.54/x - Step 3: Cross multiply
210,845.44x = 316,267.76 × 68,690.54 - Step 4: Simplify right side
210,845.44x = 21,724,603,218.99 - Step 5: Solve for x
x = 21,724,603,218.99/210,845.44 - Step 6: Final answer
x = 103,035.68
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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.