Finding the Fourth Proportional to 380,787.63, 525,544.83 and 243,025.99
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Solution
The fourth proportional to 380,787.63, 525,544.83 and 243,025.99 is: 335,412.82
Step by Step Solution
- Step 1: Write the proportion equation
380,787.63 : 525,544.83 = 243,025.99 : x - Step 2: Convert to fraction form
380,787.63/525,544.83 = 243,025.99/x - Step 3: Cross multiply
380,787.63x = 525,544.83 × 243,025.99 - Step 4: Simplify right side
380,787.63x = 127,721,052,600.13 - Step 5: Solve for x
x = 127,721,052,600.13/380,787.63 - Step 6: Final answer
x = 335,412.82
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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.