Finding the Fourth Proportional to 275,664.36, 380,390.68 and 154,781.99
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Solution
The fourth proportional to 275,664.36, 380,390.68 and 154,781.99 is: 213,584.47
Step by Step Solution
- Step 1: Write the proportion equation
275,664.36 : 380,390.68 = 154,781.99 : x - Step 2: Convert to fraction form
275,664.36/380,390.68 = 154,781.99/x - Step 3: Cross multiply
275,664.36x = 380,390.68 × 154,781.99 - Step 4: Simplify right side
275,664.36x = 58,877,626,145.84 - Step 5: Solve for x
x = 58,877,626,145.84/275,664.36 - Step 6: Final answer
x = 213,584.47
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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.