Finding the Fourth Proportional to 259,975.80, 389,672.10 and 133,567.20
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Solution
The fourth proportional to 259,975.80, 389,672.10 and 133,567.20 is: 200,200.99
Step by Step Solution
- Step 1: Write the proportion equation
259,975.80 : 389,672.10 = 133,567.20 : x - Step 2: Convert to fraction form
259,975.80/389,672.10 = 133,567.20/x - Step 3: Cross multiply
259,975.80x = 389,672.10 × 133,567.20 - Step 4: Simplify right side
259,975.80x = 52,047,411,315.12 - Step 5: Solve for x
x = 52,047,411,315.12/259,975.80 - Step 6: Final answer
x = 200,200.99
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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.