Finding the Fourth Proportional to 209,862.70, 289,610.74 and 114,369.47
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Solution
The fourth proportional to 209,862.70, 289,610.74 and 114,369.47 is: 157,829.99
Step by Step Solution
- Step 1: Write the proportion equation
209,862.70 : 289,610.74 = 114,369.47 : x - Step 2: Convert to fraction form
209,862.70/289,610.74 = 114,369.47/x - Step 3: Cross multiply
209,862.70x = 289,610.74 × 114,369.47 - Step 4: Simplify right side
209,862.70x = 33,122,626,621.06 - Step 5: Solve for x
x = 33,122,626,621.06/209,862.70 - Step 6: Final answer
x = 157,829.99
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1.5x scale
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.