Finding the Fourth Proportional to 205,203.92, 307,903.08 and 142,121.12
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Solution
The fourth proportional to 205,203.92, 307,903.08 and 142,121.12 is: 213,249.00
Step by Step Solution
- Step 1: Write the proportion equation
205,203.92 : 307,903.08 = 142,121.12 : x - Step 2: Convert to fraction form
205,203.92/307,903.08 = 142,121.12/x - Step 3: Cross multiply
205,203.92x = 307,903.08 × 142,121.12 - Step 4: Simplify right side
205,203.92x = 43,759,530,581.05 - Step 5: Solve for x
x = 43,759,530,581.05/205,203.92 - Step 6: Final answer
x = 213,249.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.