Finding the Fourth Proportional to 201,083.86, 277,426.26 and 128,529.19
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Solution
The fourth proportional to 201,083.86, 277,426.26 and 128,529.19 is: 177,325.88
Step by Step Solution
- Step 1: Write the proportion equation
201,083.86 : 277,426.26 = 128,529.19 : x - Step 2: Convert to fraction form
201,083.86/277,426.26 = 128,529.19/x - Step 3: Cross multiply
201,083.86x = 277,426.26 × 128,529.19 - Step 4: Simplify right side
201,083.86x = 35,657,372,482.53 - Step 5: Solve for x
x = 35,657,372,482.53/201,083.86 - Step 6: Final answer
x = 177,325.88
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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.