Finding the Fourth Proportional to 203,887.44, 305,931.36 and 91,646.96
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Solution
The fourth proportional to 203,887.44, 305,931.36 and 91,646.96 is: 137,515.48
Step by Step Solution
- Step 1: Write the proportion equation
203,887.44 : 305,931.36 = 91,646.96 : x - Step 2: Convert to fraction form
203,887.44/305,931.36 = 91,646.96/x - Step 3: Cross multiply
203,887.44x = 305,931.36 × 91,646.96 - Step 4: Simplify right side
203,887.44x = 28,037,679,112.67 - Step 5: Solve for x
x = 28,037,679,112.67/203,887.44 - Step 6: Final answer
x = 137,515.48
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1.5x scale
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.