Finding the Fourth Proportional to 235,318.78, 324,767.55 and 139,825.54
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Solution
The fourth proportional to 235,318.78, 324,767.55 and 139,825.54 is: 192,975.66
Step by Step Solution
- Step 1: Write the proportion equation
235,318.78 : 324,767.55 = 139,825.54 : x - Step 2: Convert to fraction form
235,318.78/324,767.55 = 139,825.54/x - Step 3: Cross multiply
235,318.78x = 324,767.55 × 139,825.54 - Step 4: Simplify right side
235,318.78x = 45,410,798,053.23 - Step 5: Solve for x
x = 45,410,798,053.23/235,318.78 - Step 6: Final answer
x = 192,975.66
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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.