Finding the Fourth Proportional to 212,905.86, 293,800.19 and 122,197.98
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Solution
The fourth proportional to 212,905.86, 293,800.19 and 122,197.98 is: 168,627.53
Step by Step Solution
- Step 1: Write the proportion equation
212,905.86 : 293,800.19 = 122,197.98 : x - Step 2: Convert to fraction form
212,905.86/293,800.19 = 122,197.98/x - Step 3: Cross multiply
212,905.86x = 293,800.19 × 122,197.98 - Step 4: Simplify right side
212,905.86x = 35,901,789,741.62 - Step 5: Solve for x
x = 35,901,789,741.62/212,905.86 - Step 6: Final answer
x = 168,627.53
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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.