Finding the Fourth Proportional to 205,885.13, 284,121.41 and 115,241.06
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Solution
The fourth proportional to 205,885.13, 284,121.41 and 115,241.06 is: 159,032.63
Step by Step Solution
- Step 1: Write the proportion equation
205,885.13 : 284,121.41 = 115,241.06 : x - Step 2: Convert to fraction form
205,885.13/284,121.41 = 115,241.06/x - Step 3: Cross multiply
205,885.13x = 284,121.41 × 115,241.06 - Step 4: Simplify right side
205,885.13x = 32,742,452,591.19 - Step 5: Solve for x
x = 32,742,452,591.19/205,885.13 - Step 6: Final answer
x = 159,032.63
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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.