Finding the Fourth Proportional to 409,561.12, 614,618.49 and 143,323.99
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Solution
The fourth proportional to 409,561.12, 614,618.49 and 143,323.99 is: 215,082.85
Step by Step Solution
- Step 1: Write the proportion equation
409,561.12 : 614,618.49 = 143,323.99 : x - Step 2: Convert to fraction form
409,561.12/614,618.49 = 143,323.99/x - Step 3: Cross multiply
409,561.12x = 614,618.49 × 143,323.99 - Step 4: Simplify right side
409,561.12x = 88,089,574,314.58 - Step 5: Solve for x
x = 88,089,574,314.58/409,561.12 - Step 6: Final answer
x = 215,082.85
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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.