Finding the Fourth Proportional to 239,639.76, 330,709.20 and 132,211.20
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Solution
The fourth proportional to 239,639.76, 330,709.20 and 132,211.20 is: 182,454.95
Step by Step Solution
- Step 1: Write the proportion equation
239,639.76 : 330,709.20 = 132,211.20 : x - Step 2: Convert to fraction form
239,639.76/330,709.20 = 132,211.20/x - Step 3: Cross multiply
239,639.76x = 330,709.20 × 132,211.20 - Step 4: Simplify right side
239,639.76x = 43,723,460,183.04 - Step 5: Solve for x
x = 43,723,460,183.04/239,639.76 - Step 6: Final answer
x = 182,454.95
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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.