Finding the Fourth Proportional to 252,126.40, 347,928.01 and 137,407.99
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Solution
The fourth proportional to 252,126.40, 347,928.01 and 137,407.99 is: 189,619.52
Step by Step Solution
- Step 1: Write the proportion equation
252,126.40 : 347,928.01 = 137,407.99 : x - Step 2: Convert to fraction form
252,126.40/347,928.01 = 137,407.99/x - Step 3: Cross multiply
252,126.40x = 347,928.01 × 137,407.99 - Step 4: Simplify right side
252,126.40x = 47,808,086,092.12 - Step 5: Solve for x
x = 47,808,086,092.12/252,126.40 - Step 6: Final answer
x = 189,619.52
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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.