Finding the Fourth Proportional to 192,360.78, 288,605.28 and 121,201.28
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Solution
The fourth proportional to 192,360.78, 288,605.28 and 121,201.28 is: 181,842.31
Step by Step Solution
- Step 1: Write the proportion equation
192,360.78 : 288,605.28 = 121,201.28 : x - Step 2: Convert to fraction form
192,360.78/288,605.28 = 121,201.28/x - Step 3: Cross multiply
192,360.78x = 288,605.28 × 121,201.28 - Step 4: Simplify right side
192,360.78x = 34,979,329,350.76 - Step 5: Solve for x
x = 34,979,329,350.76/192,360.78 - Step 6: Final answer
x = 181,842.31
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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.