Finding the Fourth Proportional to 253,664.60, 350,052.95 and 138,942.17
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Solution
The fourth proportional to 253,664.60, 350,052.95 and 138,942.17 is: 191,737.90
Step by Step Solution
- Step 1: Write the proportion equation
253,664.60 : 350,052.95 = 138,942.17 : x - Step 2: Convert to fraction form
253,664.60/350,052.95 = 138,942.17/x - Step 3: Cross multiply
253,664.60x = 350,052.95 × 138,942.17 - Step 4: Simplify right side
253,664.60x = 48,637,115,793.19 - Step 5: Solve for x
x = 48,637,115,793.19/253,664.60 - Step 6: Final answer
x = 191,737.90
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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.