Finding the Fourth Proportional to 331,982.12, 458,170.80 and 202,996.19
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Solution
The fourth proportional to 331,982.12, 458,170.80 and 202,996.19 is: 280,156.43
Step by Step Solution
- Step 1: Write the proportion equation
331,982.12 : 458,170.80 = 202,996.19 : x - Step 2: Convert to fraction form
331,982.12/458,170.80 = 202,996.19/x - Step 3: Cross multiply
331,982.12x = 458,170.80 × 202,996.19 - Step 4: Simplify right side
331,982.12x = 93,006,924,478.40 - Step 5: Solve for x
x = 93,006,924,478.40/331,982.12 - Step 6: Final answer
x = 280,156.43
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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.