Finding the Fourth Proportional to 224,687.06, 309,971.84 and 129,173.48
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Solution
The fourth proportional to 224,687.06, 309,971.84 and 129,173.48 is: 178,204.03
Step by Step Solution
- Step 1: Write the proportion equation
224,687.06 : 309,971.84 = 129,173.48 : x - Step 2: Convert to fraction form
224,687.06/309,971.84 = 129,173.48/x - Step 3: Cross multiply
224,687.06x = 309,971.84 × 129,173.48 - Step 4: Simplify right side
224,687.06x = 40,040,139,079.08 - Step 5: Solve for x
x = 40,040,139,079.08/224,687.06 - Step 6: Final answer
x = 178,204.03
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.