Finding the Fourth Proportional to 189,317.62, 261,259.21 and 104,434.68
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Solution
The fourth proportional to 189,317.62, 261,259.21 and 104,434.68 is: 144,120.35
Step by Step Solution
- Step 1: Write the proportion equation
189,317.62 : 261,259.21 = 104,434.68 : x - Step 2: Convert to fraction form
189,317.62/261,259.21 = 104,434.68/x - Step 3: Cross multiply
189,317.62x = 261,259.21 × 104,434.68 - Step 4: Simplify right side
189,317.62x = 27,284,521,993.40 - Step 5: Solve for x
x = 27,284,521,993.40/189,317.62 - Step 6: Final answer
x = 144,120.35
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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.