Finding the Fourth Proportional to 253,869.99, 350,344.43 and 139,147.74
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Solution
The fourth proportional to 253,869.99, 350,344.43 and 139,147.74 is: 192,025.99
Step by Step Solution
- Step 1: Write the proportion equation
253,869.99 : 350,344.43 = 139,147.74 : x - Step 2: Convert to fraction form
253,869.99/350,344.43 = 139,147.74/x - Step 3: Cross multiply
253,869.99x = 350,344.43 × 139,147.74 - Step 4: Simplify right side
253,869.99x = 48,749,634,960.35 - Step 5: Solve for x
x = 48,749,634,960.35/253,869.99 - Step 6: Final answer
x = 192,025.99
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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.