Finding the Fourth Proportional to 280,592.60, 387,121.74 and 159,703.62
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Solution
The fourth proportional to 280,592.60, 387,121.74 and 159,703.62 is: 220,336.33
Step by Step Solution
- Step 1: Write the proportion equation
280,592.60 : 387,121.74 = 159,703.62 : x - Step 2: Convert to fraction form
280,592.60/387,121.74 = 159,703.62/x - Step 3: Cross multiply
280,592.60x = 387,121.74 × 159,703.62 - Step 4: Simplify right side
280,592.60x = 61,824,743,258.70 - Step 5: Solve for x
x = 61,824,743,258.70/280,592.60 - Step 6: Final answer
x = 220,336.33
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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.