Finding the Fourth Proportional to 256,502.07, 353,972.10 and 143,324.91
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Solution
The fourth proportional to 256,502.07, 353,972.10 and 143,324.91 is: 197,787.95
Step by Step Solution
- Step 1: Write the proportion equation
256,502.07 : 353,972.10 = 143,324.91 : x - Step 2: Convert to fraction form
256,502.07/353,972.10 = 143,324.91/x - Step 3: Cross multiply
256,502.07x = 353,972.10 × 143,324.91 - Step 4: Simplify right side
256,502.07x = 50,733,019,375.01 - Step 5: Solve for x
x = 50,733,019,375.01/256,502.07 - Step 6: Final answer
x = 197,787.95
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1.5x scale
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.