Finding the Fourth Proportional to 403,403.48, 556,696.86 and 222,116.12
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Solution
The fourth proportional to 403,403.48, 556,696.86 and 222,116.12 is: 306,520.28
Step by Step Solution
- Step 1: Write the proportion equation
403,403.48 : 556,696.86 = 222,116.12 : x - Step 2: Convert to fraction form
403,403.48/556,696.86 = 222,116.12/x - Step 3: Cross multiply
403,403.48x = 556,696.86 × 222,116.12 - Step 4: Simplify right side
403,403.48x = 123,651,346,559.38 - Step 5: Solve for x
x = 123,651,346,559.38/403,403.48 - Step 6: Final answer
x = 306,520.28
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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.