Finding the Fourth Proportional to 202,933.12, 280,315.28 and 155,769.28
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Solution
The fourth proportional to 202,933.12, 280,315.28 and 155,769.28 is: 215,166.99
Step by Step Solution
- Step 1: Write the proportion equation
202,933.12 : 280,315.28 = 155,769.28 : x - Step 2: Convert to fraction form
202,933.12/280,315.28 = 155,769.28/x - Step 3: Cross multiply
202,933.12x = 280,315.28 × 155,769.28 - Step 4: Simplify right side
202,933.12x = 43,664,509,338.60 - Step 5: Solve for x
x = 43,664,509,338.60/202,933.12 - Step 6: Final answer
x = 215,166.99
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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.