Finding the Fourth Proportional to 319,082.16, 440,344.43 and 173,900.05
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Solution
The fourth proportional to 319,082.16, 440,344.43 and 173,900.05 is: 239,988.09
Step by Step Solution
- Step 1: Write the proportion equation
319,082.16 : 440,344.43 = 173,900.05 : x - Step 2: Convert to fraction form
319,082.16/440,344.43 = 173,900.05/x - Step 3: Cross multiply
319,082.16x = 440,344.43 × 173,900.05 - Step 4: Simplify right side
319,082.16x = 76,575,918,394.22 - Step 5: Solve for x
x = 76,575,918,394.22/319,082.16 - Step 6: Final answer
x = 239,988.09
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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.