Finding the Fourth Proportional to 212,085.96, 292,684.20 and 115,296.31
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Solution
The fourth proportional to 212,085.96, 292,684.20 and 115,296.31 is: 159,111.94
Step by Step Solution
- Step 1: Write the proportion equation
212,085.96 : 292,684.20 = 115,296.31 : x - Step 2: Convert to fraction form
212,085.96/292,684.20 = 115,296.31/x - Step 3: Cross multiply
212,085.96x = 292,684.20 × 115,296.31 - Step 4: Simplify right side
212,085.96x = 33,745,408,255.30 - Step 5: Solve for x
x = 33,745,408,255.30/212,085.96 - Step 6: Final answer
x = 159,111.94
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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.