Finding the Fourth Proportional to 145,838.61, 218,770.26 and 40,657.68
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Solution
The fourth proportional to 145,838.61, 218,770.26 and 40,657.68 is: 60,989.96
Step by Step Solution
- Step 1: Write the proportion equation
145,838.61 : 218,770.26 = 40,657.68 : x - Step 2: Convert to fraction form
145,838.61/218,770.26 = 40,657.68/x - Step 3: Cross multiply
145,838.61x = 218,770.26 × 40,657.68 - Step 4: Simplify right side
145,838.61x = 8,894,690,130.75 - Step 5: Solve for x
x = 8,894,690,130.75/145,838.61 - Step 6: Final answer
x = 60,989.96
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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.