Finding the Fourth Proportional to 643,469.64, 965,211.84 and 194,194.44
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Solution
The fourth proportional to 643,469.64, 965,211.84 and 194,194.44 is: 291,293.89
Step by Step Solution
- Step 1: Write the proportion equation
643,469.64 : 965,211.84 = 194,194.44 : x - Step 2: Convert to fraction form
643,469.64/965,211.84 = 194,194.44/x - Step 3: Cross multiply
643,469.64x = 965,211.84 × 194,194.44 - Step 4: Simplify right side
643,469.64x = 187,438,772,750.17 - Step 5: Solve for x
x = 187,438,772,750.17/643,469.64 - Step 6: Final answer
x = 291,293.89
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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.