Finding the Fourth Proportional to 313,505.34, 432,640.56 and 170,268.18
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Solution
The fourth proportional to 313,505.34, 432,640.56 and 170,268.18 is: 234,971.82
Step by Step Solution
- Step 1: Write the proportion equation
313,505.34 : 432,640.56 = 170,268.18 : x - Step 2: Convert to fraction form
313,505.34/432,640.56 = 170,268.18/x - Step 3: Cross multiply
313,505.34x = 432,640.56 × 170,268.18 - Step 4: Simplify right side
313,505.34x = 73,664,920,745.38 - Step 5: Solve for x
x = 73,664,920,745.38/313,505.34 - Step 6: Final answer
x = 234,971.82
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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.