Finding the Fourth Proportional to 206,941.44, 285,682.53 and 135,430.70
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Solution
The fourth proportional to 206,941.44, 285,682.53 and 135,430.70 is: 186,961.99
Step by Step Solution
- Step 1: Write the proportion equation
206,941.44 : 285,682.53 = 135,430.70 : x - Step 2: Convert to fraction form
206,941.44/285,682.53 = 135,430.70/x - Step 3: Cross multiply
206,941.44x = 285,682.53 × 135,430.70 - Step 4: Simplify right side
206,941.44x = 38,690,184,095.12 - Step 5: Solve for x
x = 38,690,184,095.12/206,941.44 - Step 6: Final answer
x = 186,961.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.