Finding the Fourth Proportional to 438,231.40, 657,152.70 and 201,646.60
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Solution
The fourth proportional to 438,231.40, 657,152.70 and 201,646.60 is: 302,380.45
Step by Step Solution
- Step 1: Write the proportion equation
438,231.40 : 657,152.70 = 201,646.60 : x - Step 2: Convert to fraction form
438,231.40/657,152.70 = 201,646.60/x - Step 3: Cross multiply
438,231.40x = 657,152.70 × 201,646.60 - Step 4: Simplify right side
438,231.40x = 132,512,607,635.82 - Step 5: Solve for x
x = 132,512,607,635.82/438,231.40 - Step 6: Final answer
x = 302,380.45
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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.