Finding the Fourth Proportional to 253,174.25, 349,468.44 and 145,787.09
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Solution
The fourth proportional to 253,174.25, 349,468.44 and 145,787.09 is: 201,236.84
Step by Step Solution
- Step 1: Write the proportion equation
253,174.25 : 349,468.44 = 145,787.09 : x - Step 2: Convert to fraction form
253,174.25/349,468.44 = 145,787.09/x - Step 3: Cross multiply
253,174.25x = 349,468.44 × 145,787.09 - Step 4: Simplify right side
253,174.25x = 50,947,985,167.10 - Step 5: Solve for x
x = 50,947,985,167.10/253,174.25 - Step 6: Final answer
x = 201,236.84
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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.