Finding the Fourth Proportional to 189,221.08, 261,124.68 and 104,338.48
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Solution
The fourth proportional to 189,221.08, 261,124.68 and 104,338.48 is: 143,986.88
Step by Step Solution
- Step 1: Write the proportion equation
189,221.08 : 261,124.68 = 104,338.48 : x - Step 2: Convert to fraction form
189,221.08/261,124.68 = 104,338.48/x - Step 3: Cross multiply
189,221.08x = 261,124.68 × 104,338.48 - Step 4: Simplify right side
189,221.08x = 27,245,352,201.69 - Step 5: Solve for x
x = 27,245,352,201.69/189,221.08 - Step 6: Final answer
x = 143,986.88
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1.5x scale
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.