Finding the Fourth Proportional to 138,827.57, 208,241.35 and 33,646.54
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Solution
The fourth proportional to 138,827.57, 208,241.35 and 33,646.54 is: 50,469.80
Step by Step Solution
- Step 1: Write the proportion equation
138,827.57 : 208,241.35 = 33,646.54 : x - Step 2: Convert to fraction form
138,827.57/208,241.35 = 33,646.54/x - Step 3: Cross multiply
138,827.57x = 208,241.35 × 33,646.54 - Step 4: Simplify right side
138,827.57x = 7,006,599,702.99 - Step 5: Solve for x
x = 7,006,599,702.99/138,827.57 - Step 6: Final answer
x = 50,469.80
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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.