Finding the Fourth Proportional to 312,355.48, 468,725.88 and 122,782.54
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Solution
The fourth proportional to 312,355.48, 468,725.88 and 122,782.54 is: 184,249.54
Step by Step Solution
- Step 1: Write the proportion equation
312,355.48 : 468,725.88 = 122,782.54 : x - Step 2: Convert to fraction form
312,355.48/468,725.88 = 122,782.54/x - Step 3: Cross multiply
312,355.48x = 468,725.88 × 122,782.54 - Step 4: Simplify right side
312,355.48x = 57,551,354,110.14 - Step 5: Solve for x
x = 57,551,354,110.14/312,355.48 - Step 6: Final answer
x = 184,249.54
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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.