Finding the Fourth Proportional to 199,631.21, 299,197.62 and 99,819.95
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Solution
The fourth proportional to 199,631.21, 299,197.62 and 99,819.95 is: 149,605.31
Step by Step Solution
- Step 1: Write the proportion equation
199,631.21 : 299,197.62 = 99,819.95 : x - Step 2: Convert to fraction form
199,631.21/299,197.62 = 99,819.95/x - Step 3: Cross multiply
199,631.21x = 299,197.62 × 99,819.95 - Step 4: Simplify right side
199,631.21x = 29,865,889,473.43 - Step 5: Solve for x
x = 29,865,889,473.43/199,631.21 - Step 6: Final answer
x = 149,605.31
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1.5x scale
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.