Finding the Fourth Proportional to 230,526.53, 318,107.22 and 128,543.99
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Solution
The fourth proportional to 230,526.53, 318,107.22 and 128,543.99 is: 177,379.89
Step by Step Solution
- Step 1: Write the proportion equation
230,526.53 : 318,107.22 = 128,543.99 : x - Step 2: Convert to fraction form
230,526.53/318,107.22 = 128,543.99/x - Step 3: Cross multiply
230,526.53x = 318,107.22 × 128,543.99 - Step 4: Simplify right side
230,526.53x = 40,890,769,716.07 - Step 5: Solve for x
x = 40,890,769,716.07/230,526.53 - Step 6: Final answer
x = 177,379.89
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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.