Finding the Fourth Proportional to 403,638.26, 557,064.55 and 222,368.76
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Solution
The fourth proportional to 403,638.26, 557,064.55 and 222,368.76 is: 306,892.99
Step by Step Solution
- Step 1: Write the proportion equation
403,638.26 : 557,064.55 = 222,368.76 : x - Step 2: Convert to fraction form
403,638.26/557,064.55 = 222,368.76/x - Step 3: Cross multiply
403,638.26x = 557,064.55 × 222,368.76 - Step 4: Simplify right side
403,638.26x = 123,873,753,223.46 - Step 5: Solve for x
x = 123,873,753,223.46/403,638.26 - Step 6: Final answer
x = 306,892.99
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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.