Finding the Fourth Proportional to 328,411.36, 453,212.70 and 192,412.76
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Solution
The fourth proportional to 328,411.36, 453,212.70 and 192,412.76 is: 265,532.56
Step by Step Solution
- Step 1: Write the proportion equation
328,411.36 : 453,212.70 = 192,412.76 : x - Step 2: Convert to fraction form
328,411.36/453,212.70 = 192,412.76/x - Step 3: Cross multiply
328,411.36x = 453,212.70 × 192,412.76 - Step 4: Simplify right side
328,411.36x = 87,203,906,474.05 - Step 5: Solve for x
x = 87,203,906,474.05/328,411.36 - Step 6: Final answer
x = 265,532.56
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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.