Finding the Fourth Proportional to 201,048.77, 277,509.58 and 129,428.79
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Solution
The fourth proportional to 201,048.77, 277,509.58 and 129,428.79 is: 178,651.82
Step by Step Solution
- Step 1: Write the proportion equation
201,048.77 : 277,509.58 = 129,428.79 : x - Step 2: Convert to fraction form
201,048.77/277,509.58 = 129,428.79/x - Step 3: Cross multiply
201,048.77x = 277,509.58 × 129,428.79 - Step 4: Simplify right side
201,048.77x = 35,917,728,569.07 - Step 5: Solve for x
x = 35,917,728,569.07/201,048.77 - Step 6: Final answer
x = 178,651.82
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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.