Finding the Fourth Proportional to 204,329.80, 306,494.70 and 142,121.80
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Solution
The fourth proportional to 204,329.80, 306,494.70 and 142,121.80 is: 213,182.70
Step by Step Solution
- Step 1: Write the proportion equation
204,329.80 : 306,494.70 = 142,121.80 : x - Step 2: Convert to fraction form
204,329.80/306,494.70 = 142,121.80/x - Step 3: Cross multiply
204,329.80x = 306,494.70 × 142,121.80 - Step 4: Simplify right side
204,329.80x = 43,559,578,454.46 - Step 5: Solve for x
x = 43,559,578,454.46/204,329.80 - Step 6: Final answer
x = 213,182.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.