Finding the Fourth Proportional to 403,445.12, 556,742.08 and 222,157.44
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Solution
The fourth proportional to 403,445.12, 556,742.08 and 222,157.44 is: 306,570.56
Step by Step Solution
- Step 1: Write the proportion equation
403,445.12 : 556,742.08 = 222,157.44 : x - Step 2: Convert to fraction form
403,445.12/556,742.08 = 222,157.44/x - Step 3: Cross multiply
403,445.12x = 556,742.08 × 222,157.44 - Step 4: Simplify right side
403,445.12x = 123,684,395,233.08 - Step 5: Solve for x
x = 123,684,395,233.08/403,445.12 - Step 6: Final answer
x = 306,570.56
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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.