Finding the Fourth Proportional to 320,863.75, 442,908.62 and 186,727.75
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Solution
The fourth proportional to 320,863.75, 442,908.62 and 186,727.75 is: 257,752.18
Step by Step Solution
- Step 1: Write the proportion equation
320,863.75 : 442,908.62 = 186,727.75 : x - Step 2: Convert to fraction form
320,863.75/442,908.62 = 186,727.75/x - Step 3: Cross multiply
320,863.75x = 442,908.62 × 186,727.75 - Step 4: Simplify right side
320,863.75x = 82,703,330,068.21 - Step 5: Solve for x
x = 82,703,330,068.21/320,863.75 - Step 6: Final answer
x = 257,752.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.