Finding the Fourth Proportional to 613,425.30, 920,137.95 and 192,743.70
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Solution
The fourth proportional to 613,425.30, 920,137.95 and 192,743.70 is: 289,115.55
Step by Step Solution
- Step 1: Write the proportion equation
613,425.30 : 920,137.95 = 192,743.70 : x - Step 2: Convert to fraction form
613,425.30/920,137.95 = 192,743.70/x - Step 3: Cross multiply
613,425.30x = 920,137.95 × 192,743.70 - Step 4: Simplify right side
613,425.30x = 177,350,792,993.42 - Step 5: Solve for x
x = 177,350,792,993.42/613,425.30 - Step 6: Final answer
x = 289,115.55
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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.