Finding the Fourth Proportional to 209,814.99, 314,753.75 and 74,868.54
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Solution
The fourth proportional to 209,814.99, 314,753.75 and 74,868.54 is: 112,313.96
Step by Step Solution
- Step 1: Write the proportion equation
209,814.99 : 314,753.75 = 74,868.54 : x - Step 2: Convert to fraction form
209,814.99/314,753.75 = 74,868.54/x - Step 3: Cross multiply
209,814.99x = 314,753.75 × 74,868.54 - Step 4: Simplify right side
209,814.99x = 23,565,151,773.91 - Step 5: Solve for x
x = 23,565,151,773.91/209,814.99 - Step 6: Final answer
x = 112,313.96
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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.