Finding the Fourth Proportional to 428,195.21, 590,881.67 and 234,602.65
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Solution
The fourth proportional to 428,195.21, 590,881.67 and 234,602.65 is: 323,736.47
Step by Step Solution
- Step 1: Write the proportion equation
428,195.21 : 590,881.67 = 234,602.65 : x - Step 2: Convert to fraction form
428,195.21/590,881.67 = 234,602.65/x - Step 3: Cross multiply
428,195.21x = 590,881.67 × 234,602.65 - Step 4: Simplify right side
428,195.21x = 138,622,405,615.69 - Step 5: Solve for x
x = 138,622,405,615.69/428,195.21 - Step 6: Final answer
x = 323,736.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.