Finding the Fourth Proportional to 191,423.70, 286,807.38 and 135,163.14
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Solution
The fourth proportional to 191,423.70, 286,807.38 and 135,163.14 is: 202,512.99
Step by Step Solution
- Step 1: Write the proportion equation
191,423.70 : 286,807.38 = 135,163.14 : x - Step 2: Convert to fraction form
191,423.70/286,807.38 = 135,163.14/x - Step 3: Cross multiply
191,423.70x = 286,807.38 × 135,163.14 - Step 4: Simplify right side
191,423.70x = 38,765,786,055.97 - Step 5: Solve for x
x = 38,765,786,055.97/191,423.70 - Step 6: Final answer
x = 202,512.99
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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.