Finding the Fourth Proportional to 257,232.21, 354,975.62 and 155,261.96
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Solution
The fourth proportional to 257,232.21, 354,975.62 and 155,261.96 is: 214,258.60
Step by Step Solution
- Step 1: Write the proportion equation
257,232.21 : 354,975.62 = 155,261.96 : x - Step 2: Convert to fraction form
257,232.21/354,975.62 = 155,261.96/x - Step 3: Cross multiply
257,232.21x = 354,975.62 × 155,261.96 - Step 4: Simplify right side
257,232.21x = 55,114,211,290.12 - Step 5: Solve for x
x = 55,114,211,290.12/257,232.21 - Step 6: Final answer
x = 214,258.60
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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.