Finding the Fourth Proportional to 273,998.70, 378,135.94 and 153,145.08
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Solution
The fourth proportional to 273,998.70, 378,135.94 and 153,145.08 is: 211,350.12
Step by Step Solution
- Step 1: Write the proportion equation
273,998.70 : 378,135.94 = 153,145.08 : x - Step 2: Convert to fraction form
273,998.70/378,135.94 = 153,145.08/x - Step 3: Cross multiply
273,998.70x = 378,135.94 × 153,145.08 - Step 4: Simplify right side
273,998.70x = 57,909,658,399.31 - Step 5: Solve for x
x = 57,909,658,399.31/273,998.70 - Step 6: Final answer
x = 211,350.12
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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.