Finding the Fourth Proportional to 256,516.24, 353,991.54 and 143,338.99
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Solution
The fourth proportional to 256,516.24, 353,991.54 and 143,338.99 is: 197,807.32
Step by Step Solution
- Step 1: Write the proportion equation
256,516.24 : 353,991.54 = 143,338.99 : x - Step 2: Convert to fraction form
256,516.24/353,991.54 = 143,338.99/x - Step 3: Cross multiply
256,516.24x = 353,991.54 × 143,338.99 - Step 4: Simplify right side
256,516.24x = 50,740,789,812.14 - Step 5: Solve for x
x = 50,740,789,812.14/256,516.24 - Step 6: Final answer
x = 197,807.32
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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.