Finding the Fourth Proportional to 239,809.99, 330,937.84 and 132,380.09
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Solution
The fourth proportional to 239,809.99, 330,937.84 and 132,380.09 is: 182,684.55
Step by Step Solution
- Step 1: Write the proportion equation
239,809.99 : 330,937.84 = 132,380.09 : x - Step 2: Convert to fraction form
239,809.99/330,937.84 = 132,380.09/x - Step 3: Cross multiply
239,809.99x = 330,937.84 × 132,380.09 - Step 4: Simplify right side
239,809.99x = 43,809,581,043.61 - Step 5: Solve for x
x = 43,809,581,043.61/239,809.99 - Step 6: Final answer
x = 182,684.55
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1.5x scale
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.