Finding the Fourth Proportional to 216,626.22, 298,972.02 and 121,138.26
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Solution
The fourth proportional to 216,626.22, 298,972.02 and 121,138.26 is: 167,186.37
Step by Step Solution
- Step 1: Write the proportion equation
216,626.22 : 298,972.02 = 121,138.26 : x - Step 2: Convert to fraction form
216,626.22/298,972.02 = 121,138.26/x - Step 3: Cross multiply
216,626.22x = 298,972.02 × 121,138.26 - Step 4: Simplify right side
216,626.22x = 36,216,950,291.49 - Step 5: Solve for x
x = 36,216,950,291.49/216,626.22 - Step 6: Final answer
x = 167,186.37
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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.