Finding the Fourth Proportional to 438,409.75, 605,005.50 and 237,205.75
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Solution
The fourth proportional to 438,409.75, 605,005.50 and 237,205.75 is: 327,343.96
Step by Step Solution
- Step 1: Write the proportion equation
438,409.75 : 605,005.50 = 237,205.75 : x - Step 2: Convert to fraction form
438,409.75/605,005.50 = 237,205.75/x - Step 3: Cross multiply
438,409.75x = 605,005.50 × 237,205.75 - Step 4: Simplify right side
438,409.75x = 143,510,783,381.63 - Step 5: Solve for x
x = 143,510,783,381.63/438,409.75 - Step 6: Final answer
x = 327,343.96
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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.