Finding the Fourth Proportional to 202,040.87, 278,754.59 and 117,140.99
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Solution
The fourth proportional to 202,040.87, 278,754.59 and 117,140.99 is: 161,618.73
Step by Step Solution
- Step 1: Write the proportion equation
202,040.87 : 278,754.59 = 117,140.99 : x - Step 2: Convert to fraction form
202,040.87/278,754.59 = 117,140.99/x - Step 3: Cross multiply
202,040.87x = 278,754.59 × 117,140.99 - Step 4: Simplify right side
202,040.87x = 32,653,588,053.94 - Step 5: Solve for x
x = 32,653,588,053.94/202,040.87 - Step 6: Final answer
x = 161,618.73
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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.