Finding the Fourth Proportional to 287,717.79, 431,638.96 and 110,224.80
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Solution
The fourth proportional to 287,717.79, 431,638.96 and 110,224.80 is: 165,361.06
Step by Step Solution
- Step 1: Write the proportion equation
287,717.79 : 431,638.96 = 110,224.80 : x - Step 2: Convert to fraction form
287,717.79/431,638.96 = 110,224.80/x - Step 3: Cross multiply
287,717.79x = 431,638.96 × 110,224.80 - Step 4: Simplify right side
287,717.79x = 47,577,318,038.21 - Step 5: Solve for x
x = 47,577,318,038.21/287,717.79 - Step 6: Final answer
x = 165,361.06
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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.