Finding the Fourth Proportional to 210,765.84, 290,864.43 and 120,135.48
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Solution
The fourth proportional to 210,765.84, 290,864.43 and 120,135.48 is: 165,791.28
Step by Step Solution
- Step 1: Write the proportion equation
210,765.84 : 290,864.43 = 120,135.48 : x - Step 2: Convert to fraction form
210,765.84/290,864.43 = 120,135.48/x - Step 3: Cross multiply
210,765.84x = 290,864.43 × 120,135.48 - Step 4: Simplify right side
210,765.84x = 34,943,137,912.98 - Step 5: Solve for x
x = 34,943,137,912.98/210,765.84 - Step 6: Final answer
x = 165,791.28
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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.