Finding the Fourth Proportional to 209,569.74, 289,197.57 and 118,923.85
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Solution
The fourth proportional to 209,569.74, 289,197.57 and 118,923.85 is: 164,109.99
Step by Step Solution
- Step 1: Write the proportion equation
209,569.74 : 289,197.57 = 118,923.85 : x - Step 2: Convert to fraction form
209,569.74/289,197.57 = 118,923.85/x - Step 3: Cross multiply
209,569.74x = 289,197.57 × 118,923.85 - Step 4: Simplify right side
209,569.74x = 34,392,488,435.04 - Step 5: Solve for x
x = 34,392,488,435.04/209,569.74 - Step 6: Final answer
x = 164,109.99
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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.