Finding the Fourth Proportional to 191,204.70, 286,807.05 and 121,163.10
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Solution
The fourth proportional to 191,204.70, 286,807.05 and 121,163.10 is: 181,744.65
Step by Step Solution
- Step 1: Write the proportion equation
191,204.70 : 286,807.05 = 121,163.10 : x - Step 2: Convert to fraction form
191,204.70/286,807.05 = 121,163.10/x - Step 3: Cross multiply
191,204.70x = 286,807.05 × 121,163.10 - Step 4: Simplify right side
191,204.70x = 34,750,431,279.86 - Step 5: Solve for x
x = 34,750,431,279.86/191,204.70 - Step 6: Final answer
x = 181,744.65
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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.