Finding the Fourth Proportional to 222,410.16, 306,948 and 126,931.20
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Solution
The fourth proportional to 222,410.16, 306,948 and 126,931.20 is: 175,177.60
Step by Step Solution
- Step 1: Write the proportion equation
222,410.16 : 306,948 = 126,931.20 : x - Step 2: Convert to fraction form
222,410.16/306,948 = 126,931.20/x - Step 3: Cross multiply
222,410.16x = 306,948 × 126,931.20 - Step 4: Simplify right side
222,410.16x = 38,961,277,977.60 - Step 5: Solve for x
x = 38,961,277,977.60/222,410.16 - Step 6: Final answer
x = 175,177.60
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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.