Finding the Fourth Proportional to 210,101.09, 289,963.70 and 116,976.20
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Solution
The fourth proportional to 210,101.09, 289,963.70 and 116,976.20 is: 161,440.62
Step by Step Solution
- Step 1: Write the proportion equation
210,101.09 : 289,963.70 = 116,976.20 : x - Step 2: Convert to fraction form
210,101.09/289,963.70 = 116,976.20/x - Step 3: Cross multiply
210,101.09x = 289,963.70 × 116,976.20 - Step 4: Simplify right side
210,101.09x = 33,918,849,729.24 - Step 5: Solve for x
x = 33,918,849,729.24/210,101.09 - Step 6: Final answer
x = 161,440.62
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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.