Finding the Fourth Proportional to 239,815.18, 330,921.36 and 132,378.28
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Solution
The fourth proportional to 239,815.18, 330,921.36 and 132,378.28 is: 182,669.01
Step by Step Solution
- Step 1: Write the proportion equation
239,815.18 : 330,921.36 = 132,378.28 : x - Step 2: Convert to fraction form
239,815.18/330,921.36 = 132,378.28/x - Step 3: Cross multiply
239,815.18x = 330,921.36 × 132,378.28 - Step 4: Simplify right side
239,815.18x = 43,806,800,452.06 - Step 5: Solve for x
x = 43,806,800,452.06/239,815.18 - Step 6: Final answer
x = 182,669.01
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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.