Finding the Fourth Proportional to 371,902.40, 557,848.68 and 91,422.08
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Solution
The fourth proportional to 371,902.40, 557,848.68 and 91,422.08 is: 137,131.91
Step by Step Solution
- Step 1: Write the proportion equation
371,902.40 : 557,848.68 = 91,422.08 : x - Step 2: Convert to fraction form
371,902.40/557,848.68 = 91,422.08/x - Step 3: Cross multiply
371,902.40x = 557,848.68 × 91,422.08 - Step 4: Simplify right side
371,902.40x = 50,999,686,650.85 - Step 5: Solve for x
x = 50,999,686,650.85/371,902.40 - Step 6: Final answer
x = 137,131.91
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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.