Finding the Fourth Proportional to 287,111.70, 430,350.42 and 118,539.09
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Solution
The fourth proportional to 287,111.70, 430,350.42 and 118,539.09 is: 177,677.70
Step by Step Solution
- Step 1: Write the proportion equation
287,111.70 : 430,350.42 = 118,539.09 : x - Step 2: Convert to fraction form
287,111.70/430,350.42 = 118,539.09/x - Step 3: Cross multiply
287,111.70x = 430,350.42 × 118,539.09 - Step 4: Simplify right side
287,111.70x = 51,013,347,167.92 - Step 5: Solve for x
x = 51,013,347,167.92/287,111.70 - Step 6: Final answer
x = 177,677.70
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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.