Finding the Fourth Proportional to 465,039.60, 641,704.95 and 261,112.94
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Solution
The fourth proportional to 465,039.60, 641,704.95 and 261,112.94 is: 360,307.95
Step by Step Solution
- Step 1: Write the proportion equation
465,039.60 : 641,704.95 = 261,112.94 : x - Step 2: Convert to fraction form
465,039.60/641,704.95 = 261,112.94/x - Step 3: Cross multiply
465,039.60x = 641,704.95 × 261,112.94 - Step 4: Simplify right side
465,039.60x = 167,557,466,107.05 - Step 5: Solve for x
x = 167,557,466,107.05/465,039.60 - Step 6: Final answer
x = 360,307.95
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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.