Finding the Fourth Proportional to 186,976.26, 257,937.60 and 135,909.84
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Solution
The fourth proportional to 186,976.26, 257,937.60 and 135,909.84 is: 187,490.42
Step by Step Solution
- Step 1: Write the proportion equation
186,976.26 : 257,937.60 = 135,909.84 : x - Step 2: Convert to fraction form
186,976.26/257,937.60 = 135,909.84/x - Step 3: Cross multiply
186,976.26x = 257,937.60 × 135,909.84 - Step 4: Simplify right side
186,976.26x = 35,056,257,945.98 - Step 5: Solve for x
x = 35,056,257,945.98/186,976.26 - Step 6: Final answer
x = 187,490.42
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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.