Finding the Fourth Proportional to 271,805.80, 407,708.70 and 72,125.80
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Solution
The fourth proportional to 271,805.80, 407,708.70 and 72,125.80 is: 108,188.70
Step by Step Solution
- Step 1: Write the proportion equation
271,805.80 : 407,708.70 = 72,125.80 : x - Step 2: Convert to fraction form
271,805.80/407,708.70 = 72,125.80/x - Step 3: Cross multiply
271,805.80x = 407,708.70 × 72,125.80 - Step 4: Simplify right side
271,805.80x = 29,406,316,154.46 - Step 5: Solve for x
x = 29,406,316,154.46/271,805.80 - Step 6: Final answer
x = 108,188.70
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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.