Finding the Fourth Proportional to 236,823.25, 326,812.28 and 129,390.98
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Solution
The fourth proportional to 236,823.25, 326,812.28 and 129,390.98 is: 178,557.47
Step by Step Solution
- Step 1: Write the proportion equation
236,823.25 : 326,812.28 = 129,390.98 : x - Step 2: Convert to fraction form
236,823.25/326,812.28 = 129,390.98/x - Step 3: Cross multiply
236,823.25x = 326,812.28 × 129,390.98 - Step 4: Simplify right side
236,823.25x = 42,286,561,185.23 - Step 5: Solve for x
x = 42,286,561,185.23/236,823.25 - Step 6: Final answer
x = 178,557.47
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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.