Finding the Fourth Proportional to 202,489.24, 279,173.10 and 138,713.08
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Solution
The fourth proportional to 202,489.24, 279,173.10 and 138,713.08 is: 191,244.54
Step by Step Solution
- Step 1: Write the proportion equation
202,489.24 : 279,173.10 = 138,713.08 : x - Step 2: Convert to fraction form
202,489.24/279,173.10 = 138,713.08/x - Step 3: Cross multiply
202,489.24x = 279,173.10 × 138,713.08 - Step 4: Simplify right side
202,489.24x = 38,724,960,554.15 - Step 5: Solve for x
x = 38,724,960,554.15/202,489.24 - Step 6: Final answer
x = 191,244.54
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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.