Finding the Fourth Proportional to 372,393.23, 558,588.99 and 135,639.14
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Solution
The fourth proportional to 372,393.23, 558,588.99 and 135,639.14 is: 203,458.40
Step by Step Solution
- Step 1: Write the proportion equation
372,393.23 : 558,588.99 = 135,639.14 : x - Step 2: Convert to fraction form
372,393.23/558,588.99 = 135,639.14/x - Step 3: Cross multiply
372,393.23x = 558,588.99 × 135,639.14 - Step 4: Simplify right side
372,393.23x = 75,766,530,217.07 - Step 5: Solve for x
x = 75,766,530,217.07/372,393.23 - Step 6: Final answer
x = 203,458.40
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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.