Finding the Fourth Proportional to 190,828.70, 286,012.65 and 97,286.30
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Solution
The fourth proportional to 190,828.70, 286,012.65 and 97,286.30 is: 145,811.99
Step by Step Solution
- Step 1: Write the proportion equation
190,828.70 : 286,012.65 = 97,286.30 : x - Step 2: Convert to fraction form
190,828.70/286,012.65 = 97,286.30/x - Step 3: Cross multiply
190,828.70x = 286,012.65 × 97,286.30 - Step 4: Simplify right side
190,828.70x = 27,825,112,471.70 - Step 5: Solve for x
x = 27,825,112,471.70/190,828.70 - Step 6: Final answer
x = 145,811.99
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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.