Finding the Fourth Proportional to 290,854.67, 436,282.14 and 91,190.63
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Solution
The fourth proportional to 290,854.67, 436,282.14 and 91,190.63 is: 136,785.99
Step by Step Solution
- Step 1: Write the proportion equation
290,854.67 : 436,282.14 = 91,190.63 : x - Step 2: Convert to fraction form
290,854.67/436,282.14 = 91,190.63/x - Step 3: Cross multiply
290,854.67x = 436,282.14 × 91,190.63 - Step 4: Simplify right side
290,854.67x = 39,784,843,204.35 - Step 5: Solve for x
x = 39,784,843,204.35/290,854.67 - Step 6: Final answer
x = 136,785.99
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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.