Finding the Fourth Proportional to 202,138.70, 303,013.65 and 157,135.10
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Solution
The fourth proportional to 202,138.70, 303,013.65 and 157,135.10 is: 235,551.53
Step by Step Solution
- Step 1: Write the proportion equation
202,138.70 : 303,013.65 = 157,135.10 : x - Step 2: Convert to fraction form
202,138.70/303,013.65 = 157,135.10/x - Step 3: Cross multiply
202,138.70x = 303,013.65 × 157,135.10 - Step 4: Simplify right side
202,138.70x = 47,614,080,194.12 - Step 5: Solve for x
x = 47,614,080,194.12/202,138.70 - Step 6: Final answer
x = 235,551.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.