Finding the Fourth Proportional to 328,523.70, 492,785.55 and 270,203.70
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Solution
The fourth proportional to 328,523.70, 492,785.55 and 270,203.70 is: 405,305.55
Step by Step Solution
- Step 1: Write the proportion equation
328,523.70 : 492,785.55 = 270,203.70 : x - Step 2: Convert to fraction form
328,523.70/492,785.55 = 270,203.70/x - Step 3: Cross multiply
328,523.70x = 492,785.55 × 270,203.70 - Step 4: Simplify right side
328,523.70x = 133,152,478,916.54 - Step 5: Solve for x
x = 133,152,478,916.54/328,523.70 - Step 6: Final answer
x = 405,305.55
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Similar ratio
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1.5x scale
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.