Finding the Fourth Proportional to 206,314.80, 309,438.98 and 56,520.06
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Solution
The fourth proportional to 206,314.80, 309,438.98 and 56,520.06 is: 84,770.99
Step by Step Solution
- Step 1: Write the proportion equation
206,314.80 : 309,438.98 = 56,520.06 : x - Step 2: Convert to fraction form
206,314.80/309,438.98 = 56,520.06/x - Step 3: Cross multiply
206,314.80x = 309,438.98 × 56,520.06 - Step 4: Simplify right side
206,314.80x = 17,489,509,715.94 - Step 5: Solve for x
x = 17,489,509,715.94/206,314.80 - Step 6: Final answer
x = 84,770.99
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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.