Finding the Fourth Proportional to 239,835.92, 331,106.12 and 144,366.16
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Solution
The fourth proportional to 239,835.92, 331,106.12 and 144,366.16 is: 199,305.09
Step by Step Solution
- Step 1: Write the proportion equation
239,835.92 : 331,106.12 = 144,366.16 : x - Step 2: Convert to fraction form
239,835.92/331,106.12 = 144,366.16/x - Step 3: Cross multiply
239,835.92x = 331,106.12 × 144,366.16 - Step 4: Simplify right side
239,835.92x = 47,800,519,096.90 - Step 5: Solve for x
x = 47,800,519,096.90/239,835.92 - Step 6: Final answer
x = 199,305.09
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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.