Finding the Fourth Proportional to 299,119.76, 412,790.18 and 163,153.70
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Solution
The fourth proportional to 299,119.76, 412,790.18 and 163,153.70 is: 225,154.78
Step by Step Solution
- Step 1: Write the proportion equation
299,119.76 : 412,790.18 = 163,153.70 : x - Step 2: Convert to fraction form
299,119.76/412,790.18 = 163,153.70/x - Step 3: Cross multiply
299,119.76x = 412,790.18 × 163,153.70 - Step 4: Simplify right side
299,119.76x = 67,348,242,310.95 - Step 5: Solve for x
x = 67,348,242,310.95/299,119.76 - Step 6: Final answer
x = 225,154.78
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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.