Finding the Fourth Proportional to 189,842.24, 261,979.08 and 135,494.48
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Solution
The fourth proportional to 189,842.24, 261,979.08 and 135,494.48 is: 186,980.09
Step by Step Solution
- Step 1: Write the proportion equation
189,842.24 : 261,979.08 = 135,494.48 : x - Step 2: Convert to fraction form
189,842.24/261,979.08 = 135,494.48/x - Step 3: Cross multiply
189,842.24x = 261,979.08 × 135,494.48 - Step 4: Simplify right side
189,842.24x = 35,496,719,215.48 - Step 5: Solve for x
x = 35,496,719,215.48/189,842.24 - Step 6: Final answer
x = 186,980.09
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1.5x scale
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.