Finding the Fourth Proportional to 157,232.75, 235,471.86 and 138,320.66
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Solution
The fourth proportional to 157,232.75, 235,471.86 and 138,320.66 is: 207,149.11
Step by Step Solution
- Step 1: Write the proportion equation
157,232.75 : 235,471.86 = 138,320.66 : x - Step 2: Convert to fraction form
157,232.75/235,471.86 = 138,320.66/x - Step 3: Cross multiply
157,232.75x = 235,471.86 × 138,320.66 - Step 4: Simplify right side
157,232.75x = 32,570,623,675.31 - Step 5: Solve for x
x = 32,570,623,675.31/157,232.75 - Step 6: Final answer
x = 207,149.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.