Finding the Fourth Proportional to 274,555.20, 411,832.80 and 97,060.80
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Solution
The fourth proportional to 274,555.20, 411,832.80 and 97,060.80 is: 145,591.20
Step by Step Solution
- Step 1: Write the proportion equation
274,555.20 : 411,832.80 = 97,060.80 : x - Step 2: Convert to fraction form
274,555.20/411,832.80 = 97,060.80/x - Step 3: Cross multiply
274,555.20x = 411,832.80 × 97,060.80 - Step 4: Simplify right side
274,555.20x = 39,972,821,034.24 - Step 5: Solve for x
x = 39,972,821,034.24/274,555.20 - Step 6: Final answer
x = 145,591.20
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Similar ratio
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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.