Finding the Fourth Proportional to 356,445.87, 491,895.21 and 195,307.05
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Solution
The fourth proportional to 356,445.87, 491,895.21 and 195,307.05 is: 269,523.68
Step by Step Solution
- Step 1: Write the proportion equation
356,445.87 : 491,895.21 = 195,307.05 : x - Step 2: Convert to fraction form
356,445.87/491,895.21 = 195,307.05/x - Step 3: Cross multiply
356,445.87x = 491,895.21 × 195,307.05 - Step 4: Simplify right side
356,445.87x = 96,070,602,374.23 - Step 5: Solve for x
x = 96,070,602,374.23/356,445.87 - Step 6: Final answer
x = 269,523.68
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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.