Finding the Fourth Proportional to 409,729.63, 614,594.49 and 129,268.75
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Solution
The fourth proportional to 409,729.63, 614,594.49 and 129,268.75 is: 193,903.14
Step by Step Solution
- Step 1: Write the proportion equation
409,729.63 : 614,594.49 = 129,268.75 : x - Step 2: Convert to fraction form
409,729.63/614,594.49 = 129,268.75/x - Step 3: Cross multiply
409,729.63x = 614,594.49 × 129,268.75 - Step 4: Simplify right side
409,729.63x = 79,447,861,479.19 - Step 5: Solve for x
x = 79,447,861,479.19/409,729.63 - Step 6: Final answer
x = 193,903.14
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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.