Finding the Fourth Proportional to 298,943.09, 412,308.18 and 191,523.12
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Solution
The fourth proportional to 298,943.09, 412,308.18 and 191,523.12 is: 264,152.45
Step by Step Solution
- Step 1: Write the proportion equation
298,943.09 : 412,308.18 = 191,523.12 : x - Step 2: Convert to fraction form
298,943.09/412,308.18 = 191,523.12/x - Step 3: Cross multiply
298,943.09x = 412,308.18 × 191,523.12 - Step 4: Simplify right side
298,943.09x = 78,966,549,035.12 - Step 5: Solve for x
x = 78,966,549,035.12/298,943.09 - Step 6: Final answer
x = 264,152.45
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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.