Finding the Fourth Proportional to 393,171.13, 589,642.44 and 153,231.63
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Solution
The fourth proportional to 393,171.13, 589,642.44 and 153,231.63 is: 229,802.92
Step by Step Solution
- Step 1: Write the proportion equation
393,171.13 : 589,642.44 = 153,231.63 : x - Step 2: Convert to fraction form
393,171.13/589,642.44 = 153,231.63/x - Step 3: Cross multiply
393,171.13x = 589,642.44 × 153,231.63 - Step 4: Simplify right side
393,171.13x = 90,351,872,198.38 - Step 5: Solve for x
x = 90,351,872,198.38/393,171.13 - Step 6: Final answer
x = 229,802.92
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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.