Finding the Fourth Proportional to 408,685.24, 613,077.02 and 135,140.68
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Solution
The fourth proportional to 408,685.24, 613,077.02 and 135,140.68 is: 202,727.28
Step by Step Solution
- Step 1: Write the proportion equation
408,685.24 : 613,077.02 = 135,140.68 : x - Step 2: Convert to fraction form
408,685.24/613,077.02 = 135,140.68/x - Step 3: Cross multiply
408,685.24x = 613,077.02 × 135,140.68 - Step 4: Simplify right side
408,685.24x = 82,851,645,375.17 - Step 5: Solve for x
x = 82,851,645,375.17/408,685.24 - Step 6: Final answer
x = 202,727.28
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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.