Finding the Fourth Proportional to 203,346.12, 305,102.79 and 89,435.31
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Solution
The fourth proportional to 203,346.12, 305,102.79 and 89,435.31 is: 134,189.74
Step by Step Solution
- Step 1: Write the proportion equation
203,346.12 : 305,102.79 = 89,435.31 : x - Step 2: Convert to fraction form
203,346.12/305,102.79 = 89,435.31/x - Step 3: Cross multiply
203,346.12x = 305,102.79 × 89,435.31 - Step 4: Simplify right side
203,346.12x = 27,286,963,909.92 - Step 5: Solve for x
x = 27,286,963,909.92/203,346.12 - Step 6: Final answer
x = 134,189.74
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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.