Finding the Fourth Proportional to 290,853.84, 436,268.06 and 91,169.68
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Solution
The fourth proportional to 290,853.84, 436,268.06 and 91,169.68 is: 136,750.54
Step by Step Solution
- Step 1: Write the proportion equation
290,853.84 : 436,268.06 = 91,169.68 : x - Step 2: Convert to fraction form
290,853.84/436,268.06 = 91,169.68/x - Step 3: Cross multiply
290,853.84x = 436,268.06 × 91,169.68 - Step 4: Simplify right side
290,853.84x = 39,774,419,424.42 - Step 5: Solve for x
x = 39,774,419,424.42/290,853.84 - Step 6: Final answer
x = 136,750.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.