Finding the Fourth Proportional to 298,444.41, 447,385.21 and 148,542.99
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Solution
The fourth proportional to 298,444.41, 447,385.21 and 148,542.99 is: 222,674.42
Step by Step Solution
- Step 1: Write the proportion equation
298,444.41 : 447,385.21 = 148,542.99 : x - Step 2: Convert to fraction form
298,444.41/447,385.21 = 148,542.99/x - Step 3: Cross multiply
298,444.41x = 447,385.21 × 148,542.99 - Step 4: Simplify right side
298,444.41x = 66,455,936,960.86 - Step 5: Solve for x
x = 66,455,936,960.86/298,444.41 - Step 6: Final answer
x = 222,674.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.