Finding the Fourth Proportional to 239,438.58, 330,427.48 and 132,012.45
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Solution
The fourth proportional to 239,438.58, 330,427.48 and 132,012.45 is: 182,178.42
Step by Step Solution
- Step 1: Write the proportion equation
239,438.58 : 330,427.48 = 132,012.45 : x - Step 2: Convert to fraction form
239,438.58/330,427.48 = 132,012.45/x - Step 3: Cross multiply
239,438.58x = 330,427.48 × 132,012.45 - Step 4: Simplify right side
239,438.58x = 43,620,541,182.13 - Step 5: Solve for x
x = 43,620,541,182.13/239,438.58 - Step 6: Final answer
x = 182,178.42
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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.