Finding the Fourth Proportional to 271,296.80, 406,938.80 and 74,304.80
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Solution
The fourth proportional to 271,296.80, 406,938.80 and 74,304.80 is: 111,455.45
Step by Step Solution
- Step 1: Write the proportion equation
271,296.80 : 406,938.80 = 74,304.80 : x - Step 2: Convert to fraction form
271,296.80/406,938.80 = 74,304.80/x - Step 3: Cross multiply
271,296.80x = 406,938.80 × 74,304.80 - Step 4: Simplify right side
271,296.80x = 30,237,506,146.24 - Step 5: Solve for x
x = 30,237,506,146.24/271,296.80 - Step 6: Final answer
x = 111,455.45
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1.5x scale
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.