Finding the Fourth Proportional to 286,861.44, 395,838.40 and 159,516.48
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Solution
The fourth proportional to 286,861.44, 395,838.40 and 159,516.48 is: 220,115.84
Step by Step Solution
- Step 1: Write the proportion equation
286,861.44 : 395,838.40 = 159,516.48 : x - Step 2: Convert to fraction form
286,861.44/395,838.40 = 159,516.48/x - Step 3: Cross multiply
286,861.44x = 395,838.40 × 159,516.48 - Step 4: Simplify right side
286,861.44x = 63,142,748,216.83 - Step 5: Solve for x
x = 63,142,748,216.83/286,861.44 - Step 6: Final answer
x = 220,115.84
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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.