Finding the Fourth Proportional to 186,843.75, 280,262.99 and 86,948.07
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Solution
The fourth proportional to 186,843.75, 280,262.99 and 86,948.07 is: 130,420.88
Step by Step Solution
- Step 1: Write the proportion equation
186,843.75 : 280,262.99 = 86,948.07 : x - Step 2: Convert to fraction form
186,843.75/280,262.99 = 86,948.07/x - Step 3: Cross multiply
186,843.75x = 280,262.99 × 86,948.07 - Step 4: Simplify right side
186,843.75x = 24,368,326,290.30 - Step 5: Solve for x
x = 24,368,326,290.30/186,843.75 - Step 6: Final answer
x = 130,420.88
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1.5x scale
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.