Finding the Fourth Proportional to 290,086.14, 400,336.52 and 193,122.66
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Solution
The fourth proportional to 290,086.14, 400,336.52 and 193,122.66 is: 266,521.02
Step by Step Solution
- Step 1: Write the proportion equation
290,086.14 : 400,336.52 = 193,122.66 : x - Step 2: Convert to fraction form
290,086.14/400,336.52 = 193,122.66/x - Step 3: Cross multiply
290,086.14x = 400,336.52 × 193,122.66 - Step 4: Simplify right side
290,086.14x = 77,314,052,671.93 - Step 5: Solve for x
x = 77,314,052,671.93/290,086.14 - Step 6: Final answer
x = 266,521.02
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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.