Finding the Fourth Proportional to 212,721.96, 293,556.36 and 115,925.85
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Solution
The fourth proportional to 212,721.96, 293,556.36 and 115,925.85 is: 159,977.70
Step by Step Solution
- Step 1: Write the proportion equation
212,721.96 : 293,556.36 = 115,925.85 : x - Step 2: Convert to fraction form
212,721.96/293,556.36 = 115,925.85/x - Step 3: Cross multiply
212,721.96x = 293,556.36 × 115,925.85 - Step 4: Simplify right side
212,721.96x = 34,030,770,555.91 - Step 5: Solve for x
x = 34,030,770,555.91/212,721.96 - Step 6: Final answer
x = 159,977.70
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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.