Finding the Fourth Proportional to 190,828.71, 286,199.33 and 85,677.75
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Solution
The fourth proportional to 190,828.71, 286,199.33 and 85,677.75 is: 128,496.99
Step by Step Solution
- Step 1: Write the proportion equation
190,828.71 : 286,199.33 = 85,677.75 : x - Step 2: Convert to fraction form
190,828.71/286,199.33 = 85,677.75/x - Step 3: Cross multiply
190,828.71x = 286,199.33 × 85,677.75 - Step 4: Simplify right side
190,828.71x = 24,520,914,217.52 - Step 5: Solve for x
x = 24,520,914,217.52/190,828.71 - Step 6: Final answer
x = 128,496.99
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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.