Finding the Fourth Proportional to 196,018.26, 270,492.73 and 115,430.21
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Solution
The fourth proportional to 196,018.26, 270,492.73 and 115,430.21 is: 159,286.35
Step by Step Solution
- Step 1: Write the proportion equation
196,018.26 : 270,492.73 = 115,430.21 : x - Step 2: Convert to fraction form
196,018.26/270,492.73 = 115,430.21/x - Step 3: Cross multiply
196,018.26x = 270,492.73 × 115,430.21 - Step 4: Simplify right side
196,018.26x = 31,223,032,627.37 - Step 5: Solve for x
x = 31,223,032,627.37/196,018.26 - Step 6: Final answer
x = 159,286.35
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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.