Finding the Fourth Proportional to 306,073.70, 422,359.68 and 191,403.80
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Solution
The fourth proportional to 306,073.70, 422,359.68 and 191,403.80 is: 264,123.47
Step by Step Solution
- Step 1: Write the proportion equation
306,073.70 : 422,359.68 = 191,403.80 : x - Step 2: Convert to fraction form
306,073.70/422,359.68 = 191,403.80/x - Step 3: Cross multiply
306,073.70x = 422,359.68 × 191,403.80 - Step 4: Simplify right side
306,073.70x = 80,841,247,718.78 - Step 5: Solve for x
x = 80,841,247,718.78/306,073.70 - Step 6: Final answer
x = 264,123.47
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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.