Finding the Fourth Proportional to 403,932.30, 557,430.48 and 222,651.33
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Solution
The fourth proportional to 403,932.30, 557,430.48 and 222,651.33 is: 307,260.99
Step by Step Solution
- Step 1: Write the proportion equation
403,932.30 : 557,430.48 = 222,651.33 : x - Step 2: Convert to fraction form
403,932.30/557,430.48 = 222,651.33/x - Step 3: Cross multiply
403,932.30x = 557,430.48 × 222,651.33 - Step 4: Simplify right side
403,932.30x = 124,112,637,754.54 - Step 5: Solve for x
x = 124,112,637,754.54/403,932.30 - Step 6: Final answer
x = 307,260.99
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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.