Finding the Fourth Proportional to 405,642.16, 607,531.59 and 202,615.09
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Solution
The fourth proportional to 405,642.16, 607,531.59 and 202,615.09 is: 303,457.28
Step by Step Solution
- Step 1: Write the proportion equation
405,642.16 : 607,531.59 = 202,615.09 : x - Step 2: Convert to fraction form
405,642.16/607,531.59 = 202,615.09/x - Step 3: Cross multiply
405,642.16x = 607,531.59 × 202,615.09 - Step 4: Simplify right side
405,642.16x = 123,095,067,785.69 - Step 5: Solve for x
x = 123,095,067,785.69/405,642.16 - Step 6: Final answer
x = 303,457.28
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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.