Finding the Fourth Proportional to 206,567.58, 309,854.74 and 71,635.88
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Solution
The fourth proportional to 206,567.58, 309,854.74 and 71,635.88 is: 107,454.99
Step by Step Solution
- Step 1: Write the proportion equation
206,567.58 : 309,854.74 = 71,635.88 : x - Step 2: Convert to fraction form
206,567.58/309,854.74 = 71,635.88/x - Step 3: Cross multiply
206,567.58x = 309,854.74 × 71,635.88 - Step 4: Simplify right side
206,567.58x = 22,196,716,972.07 - Step 5: Solve for x
x = 22,196,716,972.07/206,567.58 - Step 6: Final answer
x = 107,454.99
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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.