Finding the Fourth Proportional to 203,129.12, 280,291.92 and 118,232.48
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Solution
The fourth proportional to 203,129.12, 280,291.92 and 118,232.48 is: 163,145.53
Step by Step Solution
- Step 1: Write the proportion equation
203,129.12 : 280,291.92 = 118,232.48 : x - Step 2: Convert to fraction form
203,129.12/280,291.92 = 118,232.48/x - Step 3: Cross multiply
203,129.12x = 280,291.92 × 118,232.48 - Step 4: Simplify right side
203,129.12x = 33,139,608,825.56 - Step 5: Solve for x
x = 33,139,608,825.56/203,129.12 - Step 6: Final answer
x = 163,145.53
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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.