Finding the Fourth Proportional to 438,612.75, 605,287.42 and 237,408.75
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Solution
The fourth proportional to 438,612.75, 605,287.42 and 237,408.75 is: 327,625.06
Step by Step Solution
- Step 1: Write the proportion equation
438,612.75 : 605,287.42 = 237,408.75 : x - Step 2: Convert to fraction form
438,612.75/605,287.42 = 237,408.75/x - Step 3: Cross multiply
438,612.75x = 605,287.42 × 237,408.75 - Step 4: Simplify right side
438,612.75x = 143,700,529,179.40 - Step 5: Solve for x
x = 143,700,529,179.40/438,612.75 - Step 6: Final answer
x = 327,625.06
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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.