Finding the Fourth Proportional to 280,626.26, 387,269.94 and 153,310.08
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Solution
The fourth proportional to 280,626.26, 387,269.94 and 153,310.08 is: 211,571.03
Step by Step Solution
- Step 1: Write the proportion equation
280,626.26 : 387,269.94 = 153,310.08 : x - Step 2: Convert to fraction form
280,626.26/387,269.94 = 153,310.08/x - Step 3: Cross multiply
280,626.26x = 387,269.94 × 153,310.08 - Step 4: Simplify right side
280,626.26x = 59,372,385,483.00 - Step 5: Solve for x
x = 59,372,385,483.00/280,626.26 - Step 6: Final answer
x = 211,571.03
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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.