Finding the Fourth Proportional to 403,947.30, 557,421.90 and 222,649.26
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Solution
The fourth proportional to 403,947.30, 557,421.90 and 222,649.26 is: 307,241.99
Step by Step Solution
- Step 1: Write the proportion equation
403,947.30 : 557,421.90 = 222,649.26 : x - Step 2: Convert to fraction form
403,947.30/557,421.90 = 222,649.26/x - Step 3: Cross multiply
403,947.30x = 557,421.90 × 222,649.26 - Step 4: Simplify right side
403,947.30x = 124,109,573,542.79 - Step 5: Solve for x
x = 124,109,573,542.79/403,947.30 - Step 6: Final answer
x = 307,241.99
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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.