Finding the Fourth Proportional to 206,089.08, 308,692.35 and 155,613.12
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Solution
The fourth proportional to 206,089.08, 308,692.35 and 155,613.12 is: 233,086.49
Step by Step Solution
- Step 1: Write the proportion equation
206,089.08 : 308,692.35 = 155,613.12 : x - Step 2: Convert to fraction form
206,089.08/308,692.35 = 155,613.12/x - Step 3: Cross multiply
206,089.08x = 308,692.35 × 155,613.12 - Step 4: Simplify right side
206,089.08x = 48,036,579,703.63 - Step 5: Solve for x
x = 48,036,579,703.63/206,089.08 - Step 6: Final answer
x = 233,086.49
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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.