Finding the Fourth Proportional to 384,690.72, 577,113.84 and 131,962.08
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Solution
The fourth proportional to 384,690.72, 577,113.84 and 131,962.08 is: 197,969.79
Step by Step Solution
- Step 1: Write the proportion equation
384,690.72 : 577,113.84 = 131,962.08 : x - Step 2: Convert to fraction form
384,690.72/577,113.84 = 131,962.08/x - Step 3: Cross multiply
384,690.72x = 577,113.84 × 131,962.08 - Step 4: Simplify right side
384,690.72x = 76,157,142,723.19 - Step 5: Solve for x
x = 76,157,142,723.19/384,690.72 - Step 6: Final answer
x = 197,969.79
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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.