Finding the Fourth Proportional to 201,531.51, 278,120.12 and 115,506.98
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Solution
The fourth proportional to 201,531.51, 278,120.12 and 115,506.98 is: 159,403.43
Step by Step Solution
- Step 1: Write the proportion equation
201,531.51 : 278,120.12 = 115,506.98 : x - Step 2: Convert to fraction form
201,531.51/278,120.12 = 115,506.98/x - Step 3: Cross multiply
201,531.51x = 278,120.12 × 115,506.98 - Step 4: Simplify right side
201,531.51x = 32,124,814,213.25 - Step 5: Solve for x
x = 32,124,814,213.25/201,531.51 - Step 6: Final answer
x = 159,403.43
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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.