Finding the Fourth Proportional to 411,566.20, 617,466.18 and 131,105.08
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Solution
The fourth proportional to 411,566.20, 617,466.18 and 131,105.08 is: 196,694.85
Step by Step Solution
- Step 1: Write the proportion equation
411,566.20 : 617,466.18 = 131,105.08 : x - Step 2: Convert to fraction form
411,566.20/617,466.18 = 131,105.08/x - Step 3: Cross multiply
411,566.20x = 617,466.18 × 131,105.08 - Step 4: Simplify right side
411,566.20x = 80,952,952,926.19 - Step 5: Solve for x
x = 80,952,952,926.19/411,566.20 - Step 6: Final answer
x = 196,694.85
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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.