Finding the Fourth Proportional to 189,242.99, 283,858.30 and 76,889.98
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Solution
The fourth proportional to 189,242.99, 283,858.30 and 76,889.98 is: 115,332.45
Step by Step Solution
- Step 1: Write the proportion equation
189,242.99 : 283,858.30 = 76,889.98 : x - Step 2: Convert to fraction form
189,242.99/283,858.30 = 76,889.98/x - Step 3: Cross multiply
189,242.99x = 283,858.30 × 76,889.98 - Step 4: Simplify right side
189,242.99x = 21,825,857,206.09 - Step 5: Solve for x
x = 21,825,857,206.09/189,242.99 - Step 6: Final answer
x = 115,332.45
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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.