Finding the Fourth Proportional to 371,644.74, 557,467.45 and 91,161.99
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Solution
The fourth proportional to 371,644.74, 557,467.45 and 91,161.99 is: 136,743.07
Step by Step Solution
- Step 1: Write the proportion equation
371,644.74 : 557,467.45 = 91,161.99 : x - Step 2: Convert to fraction form
371,644.74/557,467.45 = 91,161.99/x - Step 3: Cross multiply
371,644.74x = 557,467.45 × 91,161.99 - Step 4: Simplify right side
371,644.74x = 50,819,841,874.32 - Step 5: Solve for x
x = 50,819,841,874.32/371,644.74 - Step 6: Final answer
x = 136,743.07
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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.