Finding the Fourth Proportional to 280,971.99, 421,238.88 and 190,776.87
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Solution
The fourth proportional to 280,971.99, 421,238.88 and 190,776.87 is: 286,016.54
Step by Step Solution
- Step 1: Write the proportion equation
280,971.99 : 421,238.88 = 190,776.87 : x - Step 2: Convert to fraction form
280,971.99/421,238.88 = 190,776.87/x - Step 3: Cross multiply
280,971.99x = 421,238.88 × 190,776.87 - Step 4: Simplify right side
280,971.99x = 80,362,635,048.71 - Step 5: Solve for x
x = 80,362,635,048.71/280,971.99 - Step 6: Final answer
x = 286,016.54
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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.