Finding the Fourth Proportional to 290,804.98, 436,207.62 and 91,140.92
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Solution
The fourth proportional to 290,804.98, 436,207.62 and 91,140.92 is: 136,711.43
Step by Step Solution
- Step 1: Write the proportion equation
290,804.98 : 436,207.62 = 91,140.92 : x - Step 2: Convert to fraction form
290,804.98/436,207.62 = 91,140.92/x - Step 3: Cross multiply
290,804.98x = 436,207.62 × 91,140.92 - Step 4: Simplify right side
290,804.98x = 39,756,363,797.81 - Step 5: Solve for x
x = 39,756,363,797.81/290,804.98 - Step 6: Final answer
x = 136,711.43
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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.