Finding the Fourth Proportional to 202,326.40, 303,489.60 and 139,340.80
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Solution
The fourth proportional to 202,326.40, 303,489.60 and 139,340.80 is: 209,011.20
Step by Step Solution
- Step 1: Write the proportion equation
202,326.40 : 303,489.60 = 139,340.80 : x - Step 2: Convert to fraction form
202,326.40/303,489.60 = 139,340.80/x - Step 3: Cross multiply
202,326.40x = 303,489.60 × 139,340.80 - Step 4: Simplify right side
202,326.40x = 42,288,483,655.68 - Step 5: Solve for x
x = 42,288,483,655.68/202,326.40 - Step 6: Final answer
x = 209,011.20
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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.