Finding the Fourth Proportional to 361,817.13, 542,342.67 and 121,702.45
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Solution
The fourth proportional to 361,817.13, 542,342.67 and 121,702.45 is: 182,424.84
Step by Step Solution
- Step 1: Write the proportion equation
361,817.13 : 542,342.67 = 121,702.45 : x - Step 2: Convert to fraction form
361,817.13/542,342.67 = 121,702.45/x - Step 3: Cross multiply
361,817.13x = 542,342.67 × 121,702.45 - Step 4: Simplify right side
361,817.13x = 66,004,431,678.54 - Step 5: Solve for x
x = 66,004,431,678.54/361,817.13 - Step 6: Final answer
x = 182,424.84
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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.