Finding the Fourth Proportional to 280,609.62, 387,249.76 and 153,293.41
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Solution
The fourth proportional to 280,609.62, 387,249.76 and 153,293.41 is: 211,549.54
Step by Step Solution
- Step 1: Write the proportion equation
280,609.62 : 387,249.76 = 153,293.41 : x - Step 2: Convert to fraction form
280,609.62/387,249.76 = 153,293.41/x - Step 3: Cross multiply
280,609.62x = 387,249.76 × 153,293.41 - Step 4: Simplify right side
280,609.62x = 59,362,836,232.08 - Step 5: Solve for x
x = 59,362,836,232.08/280,609.62 - Step 6: Final answer
x = 211,549.54
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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.