Finding the Fourth Proportional to 190,390.14, 285,273.66 and 115,282.80
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Solution
The fourth proportional to 190,390.14, 285,273.66 and 115,282.80 is: 172,735.55
Step by Step Solution
- Step 1: Write the proportion equation
190,390.14 : 285,273.66 = 115,282.80 : x - Step 2: Convert to fraction form
190,390.14/285,273.66 = 115,282.80/x - Step 3: Cross multiply
190,390.14x = 285,273.66 × 115,282.80 - Step 4: Simplify right side
190,390.14x = 32,887,146,291.05 - Step 5: Solve for x
x = 32,887,146,291.05/190,390.14 - Step 6: Final answer
x = 172,735.55
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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.