Finding the Fourth Proportional to 253,830.08, 380,646.70 and 135,436.84
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Solution
The fourth proportional to 253,830.08, 380,646.70 and 135,436.84 is: 203,102.75
Step by Step Solution
- Step 1: Write the proportion equation
253,830.08 : 380,646.70 = 135,436.84 : x - Step 2: Convert to fraction form
253,830.08/380,646.70 = 135,436.84/x - Step 3: Cross multiply
253,830.08x = 380,646.70 × 135,436.84 - Step 4: Simplify right side
253,830.08x = 51,553,586,204.43 - Step 5: Solve for x
x = 51,553,586,204.43/253,830.08 - Step 6: Final answer
x = 203,102.75
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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.