Finding the Fourth Proportional to 192,558.12, 288,979.06 and 91,356.54
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Solution
The fourth proportional to 192,558.12, 288,979.06 and 91,356.54 is: 137,102.12
Step by Step Solution
- Step 1: Write the proportion equation
192,558.12 : 288,979.06 = 91,356.54 : x - Step 2: Convert to fraction form
192,558.12/288,979.06 = 91,356.54/x - Step 3: Cross multiply
192,558.12x = 288,979.06 × 91,356.54 - Step 4: Simplify right side
192,558.12x = 26,400,127,054.05 - Step 5: Solve for x
x = 26,400,127,054.05/192,558.12 - Step 6: Final answer
x = 137,102.12
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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.