Finding the Fourth Proportional to 372,188.64, 558,283.26 and 91,705.92
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Solution
The fourth proportional to 372,188.64, 558,283.26 and 91,705.92 is: 137,558.95
Step by Step Solution
- Step 1: Write the proportion equation
372,188.64 : 558,283.26 = 91,705.92 : x - Step 2: Convert to fraction form
372,188.64/558,283.26 = 91,705.92/x - Step 3: Cross multiply
372,188.64x = 558,283.26 × 91,705.92 - Step 4: Simplify right side
372,188.64x = 51,197,879,978.90 - Step 5: Solve for x
x = 51,197,879,978.90/372,188.64 - Step 6: Final answer
x = 137,558.95
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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.