Finding the Fourth Proportional to 217,543.14, 325,890.68 and 122,482.76
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Solution
The fourth proportional to 217,543.14, 325,890.68 and 122,482.76 is: 183,485.39
Step by Step Solution
- Step 1: Write the proportion equation
217,543.14 : 325,890.68 = 122,482.76 : x - Step 2: Convert to fraction form
217,543.14/325,890.68 = 122,482.76/x - Step 3: Cross multiply
217,543.14x = 325,890.68 × 122,482.76 - Step 4: Simplify right side
217,543.14x = 39,915,987,702.81 - Step 5: Solve for x
x = 39,915,987,702.81/217,543.14 - Step 6: Final answer
x = 183,485.39
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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.