Finding the Fourth Proportional to 438,161.28, 604,690.56 and 247,104.96
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Solution
The fourth proportional to 438,161.28, 604,690.56 and 247,104.96 is: 341,020.63
Step by Step Solution
- Step 1: Write the proportion equation
438,161.28 : 604,690.56 = 247,104.96 : x - Step 2: Convert to fraction form
438,161.28/604,690.56 = 247,104.96/x - Step 3: Cross multiply
438,161.28x = 604,690.56 × 247,104.96 - Step 4: Simplify right side
438,161.28x = 149,422,036,641.18 - Step 5: Solve for x
x = 149,422,036,641.18/438,161.28 - Step 6: Final answer
x = 341,020.63
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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.