Finding the Fourth Proportional to 239,639.20, 330,703.20 and 132,209.19
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Solution
The fourth proportional to 239,639.20, 330,703.20 and 132,209.19 is: 182,449.29
Step by Step Solution
- Step 1: Write the proportion equation
239,639.20 : 330,703.20 = 132,209.19 : x - Step 2: Convert to fraction form
239,639.20/330,703.20 = 132,209.19/x - Step 3: Cross multiply
239,639.20x = 330,703.20 × 132,209.19 - Step 4: Simplify right side
239,639.20x = 43,722,002,202.41 - Step 5: Solve for x
x = 43,722,002,202.41/239,639.20 - Step 6: Final answer
x = 182,449.29
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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.