Finding the Fourth Proportional to 191,920.40, 264,958.36 and 133,090.10
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Solution
The fourth proportional to 191,920.40, 264,958.36 and 133,090.10 is: 183,739.38
Step by Step Solution
- Step 1: Write the proportion equation
191,920.40 : 264,958.36 = 133,090.10 : x - Step 2: Convert to fraction form
191,920.40/264,958.36 = 133,090.10/x - Step 3: Cross multiply
191,920.40x = 264,958.36 × 133,090.10 - Step 4: Simplify right side
191,920.40x = 35,263,334,628.24 - Step 5: Solve for x
x = 35,263,334,628.24/191,920.40 - Step 6: Final answer
x = 183,739.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.