Finding the Fourth Proportional to 284,293.26, 392,319.99 and 156,965.58
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Solution
The fourth proportional to 284,293.26, 392,319.99 and 156,965.58 is: 216,609.90
Step by Step Solution
- Step 1: Write the proportion equation
284,293.26 : 392,319.99 = 156,965.58 : x - Step 2: Convert to fraction form
284,293.26/392,319.99 = 156,965.58/x - Step 3: Cross multiply
284,293.26x = 392,319.99 × 156,965.58 - Step 4: Simplify right side
284,293.26x = 61,580,734,775.94 - Step 5: Solve for x
x = 61,580,734,775.94/284,293.26 - Step 6: Final answer
x = 216,609.90
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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.