Finding the Fourth Proportional to 220,289.68, 303,973.80 and 129,625.68
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Solution
The fourth proportional to 220,289.68, 303,973.80 and 129,625.68 is: 178,868.16
Step by Step Solution
- Step 1: Write the proportion equation
220,289.68 : 303,973.80 = 129,625.68 : x - Step 2: Convert to fraction form
220,289.68/303,973.80 = 129,625.68/x - Step 3: Cross multiply
220,289.68x = 303,973.80 × 129,625.68 - Step 4: Simplify right side
220,289.68x = 39,402,810,527.18 - Step 5: Solve for x
x = 39,402,810,527.18/220,289.68 - Step 6: Final answer
x = 178,868.16
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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.