Finding the Fourth Proportional to 205,984.72, 284,235.42 and 115,328.08
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Solution
The fourth proportional to 205,984.72, 284,235.42 and 115,328.08 is: 159,139.60
Step by Step Solution
- Step 1: Write the proportion equation
205,984.72 : 284,235.42 = 115,328.08 : x - Step 2: Convert to fraction form
205,984.72/284,235.42 = 115,328.08/x - Step 3: Cross multiply
205,984.72x = 284,235.42 × 115,328.08 - Step 4: Simplify right side
205,984.72x = 32,780,325,256.59 - Step 5: Solve for x
x = 32,780,325,256.59/205,984.72 - Step 6: Final answer
x = 159,139.60
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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.