Finding the Fourth Proportional to 189,941.76, 261,996.48 and 149,590.08
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Solution
The fourth proportional to 189,941.76, 261,996.48 and 149,590.08 is: 206,337.32
Step by Step Solution
- Step 1: Write the proportion equation
189,941.76 : 261,996.48 = 149,590.08 : x - Step 2: Convert to fraction form
189,941.76/261,996.48 = 149,590.08/x - Step 3: Cross multiply
189,941.76x = 261,996.48 × 149,590.08 - Step 4: Simplify right side
189,941.76x = 39,192,074,402.92 - Step 5: Solve for x
x = 39,192,074,402.92/189,941.76 - Step 6: Final answer
x = 206,337.32
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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.