Finding the Fourth Proportional to 271,323.80, 406,979.30 and 74,331.80
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Solution
The fourth proportional to 271,323.80, 406,979.30 and 74,331.80 is: 111,495.95
Step by Step Solution
- Step 1: Write the proportion equation
271,323.80 : 406,979.30 = 74,331.80 : x - Step 2: Convert to fraction form
271,323.80/406,979.30 = 74,331.80/x - Step 3: Cross multiply
271,323.80x = 406,979.30 × 74,331.80 - Step 4: Simplify right side
271,323.80x = 30,251,503,931.74 - Step 5: Solve for x
x = 30,251,503,931.74/271,323.80 - Step 6: Final answer
x = 111,495.95
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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.