Finding the Fourth Proportional to 938,155.14, 1,407,232.70 and 228,183.66
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Solution
The fourth proportional to 938,155.14, 1,407,232.70 and 228,183.66 is: 342,275.49
Step by Step Solution
- Step 1: Write the proportion equation
938,155.14 : 1,407,232.70 = 228,183.66 : x - Step 2: Convert to fraction form
938,155.14/1,407,232.70 = 228,183.66/x - Step 3: Cross multiply
938,155.14x = 1,407,232.70 × 228,183.66 - Step 4: Simplify right side
938,155.14x = 321,107,507,957.68 - Step 5: Solve for x
x = 321,107,507,957.68/938,155.14 - Step 6: Final answer
x = 342,275.49
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Similar ratio
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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.