Finding the Fourth Proportional to 189,218.40, 261,117.12 and 104,335.68
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Solution
The fourth proportional to 189,218.40, 261,117.12 and 104,335.68 is: 143,980.88
Step by Step Solution
- Step 1: Write the proportion equation
189,218.40 : 261,117.12 = 104,335.68 : x - Step 2: Convert to fraction form
189,218.40/261,117.12 = 104,335.68/x - Step 3: Cross multiply
189,218.40x = 261,117.12 × 104,335.68 - Step 4: Simplify right side
189,218.40x = 27,243,832,274.84 - Step 5: Solve for x
x = 27,243,832,274.84/189,218.40 - Step 6: Final answer
x = 143,980.88
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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.