Finding the Fourth Proportional to 280,853.08, 387,523.62 and 159,991.72
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Solution
The fourth proportional to 280,853.08, 387,523.62 and 159,991.72 is: 220,758.02
Step by Step Solution
- Step 1: Write the proportion equation
280,853.08 : 387,523.62 = 159,991.72 : x - Step 2: Convert to fraction form
280,853.08/387,523.62 = 159,991.72/x - Step 3: Cross multiply
280,853.08x = 387,523.62 × 159,991.72 - Step 4: Simplify right side
280,853.08x = 62,000,570,504.43 - Step 5: Solve for x
x = 62,000,570,504.43/280,853.08 - Step 6: Final answer
x = 220,758.02
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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.