Finding the Fourth Proportional to 215,158.72, 296,916.96 and 119,660.80
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Solution
The fourth proportional to 215,158.72, 296,916.96 and 119,660.80 is: 165,130.75
Step by Step Solution
- Step 1: Write the proportion equation
215,158.72 : 296,916.96 = 119,660.80 : x - Step 2: Convert to fraction form
215,158.72/296,916.96 = 119,660.80/x - Step 3: Cross multiply
215,158.72x = 296,916.96 × 119,660.80 - Step 4: Simplify right side
215,158.72x = 35,529,320,967.17 - Step 5: Solve for x
x = 35,529,320,967.17/215,158.72 - Step 6: Final answer
x = 165,130.75
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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.