Finding the Fourth Proportional to 203,438.19, 280,745.01 and 112,795.14
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Solution
The fourth proportional to 203,438.19, 280,745.01 and 112,795.14 is: 155,657.46
Step by Step Solution
- Step 1: Write the proportion equation
203,438.19 : 280,745.01 = 112,795.14 : x - Step 2: Convert to fraction form
203,438.19/280,745.01 = 112,795.14/x - Step 3: Cross multiply
203,438.19x = 280,745.01 × 112,795.14 - Step 4: Simplify right side
203,438.19x = 31,666,672,707.25 - Step 5: Solve for x
x = 31,666,672,707.25/203,438.19 - Step 6: Final answer
x = 155,657.46
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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.