Finding the Fourth Proportional to 372,815.40, 558,724.14 and 135,934.68
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Solution
The fourth proportional to 372,815.40, 558,724.14 and 135,934.68 is: 203,720.09
Step by Step Solution
- Step 1: Write the proportion equation
372,815.40 : 558,724.14 = 135,934.68 : x - Step 2: Convert to fraction form
372,815.40/558,724.14 = 135,934.68/x - Step 3: Cross multiply
372,815.40x = 558,724.14 × 135,934.68 - Step 4: Simplify right side
372,815.40x = 75,949,987,179.18 - Step 5: Solve for x
x = 75,949,987,179.18/372,815.40 - Step 6: Final answer
x = 203,720.09
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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.