Finding the Fourth Proportional to 238,344.52, 328,917.82 and 129,450.99
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Solution
The fourth proportional to 238,344.52, 328,917.82 and 129,450.99 is: 178,643.65
Step by Step Solution
- Step 1: Write the proportion equation
238,344.52 : 328,917.82 = 129,450.99 : x - Step 2: Convert to fraction form
238,344.52/328,917.82 = 129,450.99/x - Step 3: Cross multiply
238,344.52x = 328,917.82 × 129,450.99 - Step 4: Simplify right side
238,344.52x = 42,578,735,696.74 - Step 5: Solve for x
x = 42,578,735,696.74/238,344.52 - Step 6: Final answer
x = 178,643.65
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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.