Finding the Fourth Proportional to 186,403.32, 279,498.36 and 86,512.08
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Solution
The fourth proportional to 186,403.32, 279,498.36 and 86,512.08 is: 129,718.64
Step by Step Solution
- Step 1: Write the proportion equation
186,403.32 : 279,498.36 = 86,512.08 : x - Step 2: Convert to fraction form
186,403.32/279,498.36 = 86,512.08/x - Step 3: Cross multiply
186,403.32x = 279,498.36 × 86,512.08 - Step 4: Simplify right side
186,403.32x = 24,179,984,480.19 - Step 5: Solve for x
x = 24,179,984,480.19/186,403.32 - Step 6: Final answer
x = 129,718.64
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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.