Finding the Fourth Proportional to 201,094.52, 277,407.79 and 128,421.02
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Solution
The fourth proportional to 201,094.52, 277,407.79 and 128,421.02 is: 177,155.46
Step by Step Solution
- Step 1: Write the proportion equation
201,094.52 : 277,407.79 = 128,421.02 : x - Step 2: Convert to fraction form
201,094.52/277,407.79 = 128,421.02/x - Step 3: Cross multiply
201,094.52x = 277,407.79 × 128,421.02 - Step 4: Simplify right side
201,094.52x = 35,624,991,720.21 - Step 5: Solve for x
x = 35,624,991,720.21/201,094.52 - Step 6: Final answer
x = 177,155.46
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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.