Finding the Fourth Proportional to 230,549.58, 318,157.81 and 128,575.17
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Solution
The fourth proportional to 230,549.58, 318,157.81 and 128,575.17 is: 177,433.39
Step by Step Solution
- Step 1: Write the proportion equation
230,549.58 : 318,157.81 = 128,575.17 : x - Step 2: Convert to fraction form
230,549.58/318,157.81 = 128,575.17/x - Step 3: Cross multiply
230,549.58x = 318,157.81 × 128,575.17 - Step 4: Simplify right side
230,549.58x = 40,907,194,186.14 - Step 5: Solve for x
x = 40,907,194,186.14/230,549.58 - Step 6: Final answer
x = 177,433.39
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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.