Finding the Fourth Proportional to 660,631.68, 991,102.50 and 205,199.64
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Solution
The fourth proportional to 660,631.68, 991,102.50 and 205,199.64 is: 307,847.60
Step by Step Solution
- Step 1: Write the proportion equation
660,631.68 : 991,102.50 = 205,199.64 : x - Step 2: Convert to fraction form
660,631.68/991,102.50 = 205,199.64/x - Step 3: Cross multiply
660,631.68x = 991,102.50 × 205,199.64 - Step 4: Simplify right side
660,631.68x = 203,373,876,203.10 - Step 5: Solve for x
x = 203,373,876,203.10/660,631.68 - Step 6: Final answer
x = 307,847.60
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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.