Finding the Fourth Proportional to 209,509.13, 289,129.16 and 118,868.92
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Solution
The fourth proportional to 209,509.13, 289,129.16 and 118,868.92 is: 164,042.83
Step by Step Solution
- Step 1: Write the proportion equation
209,509.13 : 289,129.16 = 118,868.92 : x - Step 2: Convert to fraction form
209,509.13/289,129.16 = 118,868.92/x - Step 3: Cross multiply
209,509.13x = 289,129.16 × 118,868.92 - Step 4: Simplify right side
209,509.13x = 34,368,470,564.06 - Step 5: Solve for x
x = 34,368,470,564.06/209,509.13 - Step 6: Final answer
x = 164,042.83
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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.