Finding the Fourth Proportional to 438,136.70, 657,205.05 and 248,523.80
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Solution
The fourth proportional to 438,136.70, 657,205.05 and 248,523.80 is: 372,785.70
Step by Step Solution
- Step 1: Write the proportion equation
438,136.70 : 657,205.05 = 248,523.80 : x - Step 2: Convert to fraction form
438,136.70/657,205.05 = 248,523.80/x - Step 3: Cross multiply
438,136.70x = 657,205.05 × 248,523.80 - Step 4: Simplify right side
438,136.70x = 163,331,096,405.19 - Step 5: Solve for x
x = 163,331,096,405.19/438,136.70 - Step 6: Final answer
x = 372,785.70
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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.