Finding the Fourth Proportional to 261,696.96, 392,569.32 and 84,160.08
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Solution
The fourth proportional to 261,696.96, 392,569.32 and 84,160.08 is: 126,247.80
Step by Step Solution
- Step 1: Write the proportion equation
261,696.96 : 392,569.32 = 84,160.08 : x - Step 2: Convert to fraction form
261,696.96/392,569.32 = 84,160.08/x - Step 3: Cross multiply
261,696.96x = 392,569.32 × 84,160.08 - Step 4: Simplify right side
261,696.96x = 33,038,665,376.75 - Step 5: Solve for x
x = 33,038,665,376.75/261,696.96 - Step 6: Final answer
x = 126,247.80
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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.