Finding the Fourth Proportional to 289,894.37, 400,054.70 and 160,828.79
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Solution
The fourth proportional to 289,894.37, 400,054.70 and 160,828.79 is: 221,943.99
Step by Step Solution
- Step 1: Write the proportion equation
289,894.37 : 400,054.70 = 160,828.79 : x - Step 2: Convert to fraction form
289,894.37/400,054.70 = 160,828.79/x - Step 3: Cross multiply
289,894.37x = 400,054.70 × 160,828.79 - Step 4: Simplify right side
289,894.37x = 64,340,313,082.26 - Step 5: Solve for x
x = 64,340,313,082.26/289,894.37 - Step 6: Final answer
x = 221,943.99
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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.