Finding the Fourth Proportional to 189,318.16, 261,259.08 and 104,435.44
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Solution
The fourth proportional to 189,318.16, 261,259.08 and 104,435.44 is: 144,120.92
Step by Step Solution
- Step 1: Write the proportion equation
189,318.16 : 261,259.08 = 104,435.44 : x - Step 2: Convert to fraction form
189,318.16/261,259.08 = 104,435.44/x - Step 3: Cross multiply
189,318.16x = 261,259.08 × 104,435.44 - Step 4: Simplify right side
189,318.16x = 27,284,706,973.80 - Step 5: Solve for x
x = 27,284,706,973.80/189,318.16 - Step 6: Final answer
x = 144,120.92
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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.