Finding the Fourth Proportional to 403,458.13, 556,776.08 and 222,176.49
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Solution
The fourth proportional to 403,458.13, 556,776.08 and 222,176.49 is: 306,605.68
Step by Step Solution
- Step 1: Write the proportion equation
403,458.13 : 556,776.08 = 222,176.49 : x - Step 2: Convert to fraction form
403,458.13/556,776.08 = 222,176.49/x - Step 3: Cross multiply
403,458.13x = 556,776.08 × 222,176.49 - Step 4: Simplify right side
403,458.13x = 123,702,552,804.73 - Step 5: Solve for x
x = 123,702,552,804.73/403,458.13 - Step 6: Final answer
x = 306,605.68
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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.