Finding the Fourth Proportional to 363,742.99, 501,990.56 and 220,509.07
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Solution
The fourth proportional to 363,742.99, 501,990.56 and 220,509.07 is: 304,317.81
Step by Step Solution
- Step 1: Write the proportion equation
363,742.99 : 501,990.56 = 220,509.07 : x - Step 2: Convert to fraction form
363,742.99/501,990.56 = 220,509.07/x - Step 3: Cross multiply
363,742.99x = 501,990.56 × 220,509.07 - Step 4: Simplify right side
363,742.99x = 110,693,471,534.38 - Step 5: Solve for x
x = 110,693,471,534.38/363,742.99 - Step 6: Final answer
x = 304,317.81
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1.5x scale
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.