Finding the Fourth Proportional to 202,302.80, 303,454.20 and 139,317.20
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Solution
The fourth proportional to 202,302.80, 303,454.20 and 139,317.20 is: 208,975.80
Step by Step Solution
- Step 1: Write the proportion equation
202,302.80 : 303,454.20 = 139,317.20 : x - Step 2: Convert to fraction form
202,302.80/303,454.20 = 139,317.20/x - Step 3: Cross multiply
202,302.80x = 303,454.20 × 139,317.20 - Step 4: Simplify right side
202,302.80x = 42,276,389,472.24 - Step 5: Solve for x
x = 42,276,389,472.24/202,302.80 - Step 6: Final answer
x = 208,975.80
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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.