Finding the Fourth Proportional to 153,620.70, 231,260.97 and 138,171.99
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Solution
The fourth proportional to 153,620.70, 231,260.97 and 138,171.99 is: 208,004.44
Step by Step Solution
- Step 1: Write the proportion equation
153,620.70 : 231,260.97 = 138,171.99 : x - Step 2: Convert to fraction form
153,620.70/231,260.97 = 138,171.99/x - Step 3: Cross multiply
153,620.70x = 231,260.97 × 138,171.99 - Step 4: Simplify right side
153,620.70x = 31,953,788,434.23 - Step 5: Solve for x
x = 31,953,788,434.23/153,620.70 - Step 6: Final answer
x = 208,004.44
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.