Finding the Fourth Proportional to 287,361.06, 396,451.05 and 286,918.02
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Solution
The fourth proportional to 287,361.06, 396,451.05 and 286,918.02 is: 395,839.82
Step by Step Solution
- Step 1: Write the proportion equation
287,361.06 : 396,451.05 = 286,918.02 : x - Step 2: Convert to fraction form
287,361.06/396,451.05 = 286,918.02/x - Step 3: Cross multiply
287,361.06x = 396,451.05 × 286,918.02 - Step 4: Simplify right side
287,361.06x = 113,748,950,292.92 - Step 5: Solve for x
x = 113,748,950,292.92/287,361.06 - Step 6: Final answer
x = 395,839.82
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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.