Finding the Fourth Proportional to 438,234.40, 657,157.20 and 201,649.60
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Solution
The fourth proportional to 438,234.40, 657,157.20 and 201,649.60 is: 302,384.95
Step by Step Solution
- Step 1: Write the proportion equation
438,234.40 : 657,157.20 = 201,649.60 : x - Step 2: Convert to fraction form
438,234.40/657,157.20 = 201,649.60/x - Step 3: Cross multiply
438,234.40x = 657,157.20 × 201,649.60 - Step 4: Simplify right side
438,234.40x = 132,515,486,517.12 - Step 5: Solve for x
x = 132,515,486,517.12/438,234.40 - Step 6: Final answer
x = 302,384.95
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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.