Finding the Fourth Proportional to 611,493.48, 916,305.06 and 256,313.88
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Solution
The fourth proportional to 611,493.48, 916,305.06 and 256,313.88 is: 384,078.84
Step by Step Solution
- Step 1: Write the proportion equation
611,493.48 : 916,305.06 = 256,313.88 : x - Step 2: Convert to fraction form
611,493.48/916,305.06 = 256,313.88/x - Step 3: Cross multiply
611,493.48x = 916,305.06 × 256,313.88 - Step 4: Simplify right side
611,493.48x = 234,861,705,192.23 - Step 5: Solve for x
x = 234,861,705,192.23/611,493.48 - Step 6: Final answer
x = 384,078.84
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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.