Finding the Fourth Proportional to 245,967.23, 339,436.68 and 138,527.21
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Solution
The fourth proportional to 245,967.23, 339,436.68 and 138,527.21 is: 191,168.62
Step by Step Solution
- Step 1: Write the proportion equation
245,967.23 : 339,436.68 = 138,527.21 : x - Step 2: Convert to fraction form
245,967.23/339,436.68 = 138,527.21/x - Step 3: Cross multiply
245,967.23x = 339,436.68 × 138,527.21 - Step 4: Simplify right side
245,967.23x = 47,021,216,581.18 - Step 5: Solve for x
x = 47,021,216,581.18/245,967.23 - Step 6: Final answer
x = 191,168.62
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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.