Finding the Fourth Proportional to 202,221.40, 303,332.10 and 139,235.80
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Solution
The fourth proportional to 202,221.40, 303,332.10 and 139,235.80 is: 208,853.70
Step by Step Solution
- Step 1: Write the proportion equation
202,221.40 : 303,332.10 = 139,235.80 : x - Step 2: Convert to fraction form
202,221.40/303,332.10 = 139,235.80/x - Step 3: Cross multiply
202,221.40x = 303,332.10 × 139,235.80 - Step 4: Simplify right side
202,221.40x = 42,234,687,609.18 - Step 5: Solve for x
x = 42,234,687,609.18/202,221.40 - Step 6: Final answer
x = 208,853.70
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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.