Finding the Fourth Proportional to 268,786.19, 370,911.11 and 147,938.94
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Solution
The fourth proportional to 268,786.19, 370,911.11 and 147,938.94 is: 204,148.12
Step by Step Solution
- Step 1: Write the proportion equation
268,786.19 : 370,911.11 = 147,938.94 : x - Step 2: Convert to fraction form
268,786.19/370,911.11 = 147,938.94/x - Step 3: Cross multiply
268,786.19x = 370,911.11 × 147,938.94 - Step 4: Simplify right side
268,786.19x = 54,872,196,447.62 - Step 5: Solve for x
x = 54,872,196,447.62/268,786.19 - Step 6: Final answer
x = 204,148.12
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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.